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30672996144 = 24372323916607
BaseRepresentation
bin11100100100010000…
…001100011100110000
32221011122122122112020
4130210100030130300
51000304241334034
622031352431440
72134051110510
oct344420143460
987148578466
1030672996144
1112010119a9a
125b403a8580
132b7a93b17b
1416ad993840
15be7c65249
hex72440c730

30672996144 has 160 divisors (see below), whose sum is σ = 94896783360. Its totient is φ = 8347105536.

The previous prime is 30672996103. The next prime is 30672996217. The reversal of 30672996144 is 44169927603.

It is a happy number.

It is a hoax number, since the sum of its digits (51) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1838689 + ... + 1855295.

It is an arithmetic number, because the mean of its divisors is an integer number (593104896).

Almost surely, 230672996144 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 30672996144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47448391680).

30672996144 is an abundant number, since it is smaller than the sum of its proper divisors (64223787216).

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

30672996144 is a wasteful number, since it uses less digits than its factorization.

30672996144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16887 (or 16881 counting only the distinct ones).

The product of its (nonzero) digits is 1959552, while the sum is 51.

The spelling of 30672996144 in words is "thirty billion, six hundred seventy-two million, nine hundred ninety-six thousand, one hundred forty-four".

Divisors: 1 2 3 4 6 7 8 12 14 16 21 23 24 28 42 46 48 56 69 84 92 112 138 161 168 184 239 276 322 336 368 478 483 552 644 717 956 966 1104 1288 1434 1673 1912 1932 2576 2868 3346 3824 3864 5019 5497 5736 6692 7728 10038 10994 11472 13384 16491 16607 20076 21988 26768 32982 33214 38479 40152 43976 49821 65964 66428 76958 80304 87952 99642 115437 116249 131928 132856 153916 199284 230874 232498 263856 265712 307832 348747 381961 398568 461748 464996 615664 697494 763922 797136 923496 929992 1145883 1394988 1527844 1846992 1859984 2291766 2673727 2789976 3055688 3969073 4583532 5347454 5579952 6111376 7938146 8021181 9167064 10694908 11907219 15876292 16042362 18334128 21389816 23814438 27783511 31752584 32084724 42779632 47628876 55567022 63505168 64169448 83350533 91288679 95257752 111134044 128338896 166701066 182577358 190515504 222268088 273866037 333402132 365154716 444536176 547732074 639020753 666804264 730309432 1095464148 1278041506 1333608528 1460618864 1917062259 2190928296 2556083012 3834124518 4381856592 5112166024 7668249036 10224332048 15336498072 30672996144