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161084230608 = 24377323892749
BaseRepresentation
bin1001011000000101011…
…1100100101111010000
3120101210020101202210010
42112001113210233100
510114400030334413
6202000122034520
714431550240250
oct2260127445720
9511706352703
10161084230608
1162351937714
1227276948a40
1312261a889b2
147b21909960
1542cbc5adc3
hex25815e4bd0

161084230608 has 160 divisors (see below), whose sum is σ = 482474080000. Its totient is φ = 45358092288.

The previous prime is 161084230591. The next prime is 161084230621. The reversal of 161084230608 is 806032480161.

It is a Cunningham number, because it is equal to 4013532-1.

It is a super-3 number, since 3×1610842306083 (a number of 35 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 58596018 + ... + 58598766.

It is an arithmetic number, because the mean of its divisors is an integer number (3015463000).

Almost surely, 2161084230608 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 161084230608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (241237040000).

161084230608 is an abundant number, since it is smaller than the sum of its proper divisors (321389849392).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

161084230608 is a wasteful number, since it uses less digits than its factorization.

161084230608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5229 (or 5223 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 39.

The spelling of 161084230608 in words is "one hundred sixty-one billion, eighty-four million, two hundred thirty thousand, six hundred eight".

Divisors: 1 2 3 4 6 7 8 12 14 16 21 24 28 42 48 56 73 84 112 146 168 219 292 336 438 511 584 876 1022 1168 1533 1752 2044 2389 2749 3066 3504 4088 4778 5498 6132 7167 8176 8247 9556 10996 12264 14334 16494 16723 19112 19243 21992 24528 28668 32988 33446 38224 38486 43984 50169 57336 57729 65976 66892 76972 100338 114672 115458 131952 133784 153944 174397 200676 200677 230916 267568 307888 348794 401352 401354 461832 523191 602031 697588 802704 802708 923664 1046382 1204062 1220779 1395176 1404739 1605416 2092764 2408124 2441558 2790352 2809478 3210832 3662337 4185528 4214217 4816248 4883116 5618956 6567361 7324674 8371056 8428434 9632496 9766232 11237912 13134722 14649348 16856868 19532464 19702083 22475824 26269444 29298696 33713736 39404166 45971527 52538888 58597392 67427472 78808332 91943054 105077776 137914581 157616664 183886108 275829162 315233328 367772216 479417353 551658324 735544432 958834706 1103316648 1438252059 1917669412 2206633296 2876504118 3355921471 3835338824 5753008236 6711842942 7670677648 10067764413 11506016472 13423685884 20135528826 23012032944 26847371768 40271057652 53694743536 80542115304 161084230608