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23986872 = 23327213523
BaseRepresentation
bin101101110000…
…0001010111000
31200010122210200
41123200022320
522120034442
62214042200
7410612400
oct133401270
950118720
1023986872
11125a3768
128049360
134c7b020
143285800
15218c34c
hex16e02b8

23986872 has 144 divisors (see below), whose sum is σ = 81539640. Its totient is φ = 6314112.

The previous prime is 23986843. The next prime is 23986891. The reversal of 23986872 is 27868932.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 45603 + ... + 46125.

Almost surely, 223986872 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 23986872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40769820).

23986872 is an abundant number, since it is smaller than the sum of its proper divisors (57552768).

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

23986872 is a wasteful number, since it uses less digits than its factorization.

23986872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 562 (or 548 counting only the distinct ones).

The product of its digits is 290304, while the sum is 45.

The square root of 23986872 is about 4897.6394313996. The cubic root of 23986872 is about 288.3973104346.

The spelling of 23986872 in words is "twenty-three million, nine hundred eighty-six thousand, eight hundred seventy-two".

Divisors: 1 2 3 4 6 7 8 9 12 13 14 18 21 24 26 28 36 39 42 49 52 56 63 72 78 84 91 98 104 117 126 147 156 168 182 196 234 252 273 294 312 364 392 441 468 504 523 546 588 637 728 819 882 936 1046 1092 1176 1274 1569 1638 1764 1911 2092 2184 2548 3138 3276 3528 3661 3822 4184 4707 5096 5733 6276 6552 6799 7322 7644 9414 10983 11466 12552 13598 14644 15288 18828 20397 21966 22932 25627 27196 29288 32949 37656 40794 43932 45864 47593 51254 54392 61191 65898 76881 81588 87864 95186 102508 122382 131796 142779 153762 163176 190372 205016 230643 244764 263592 285558 307524 333151 380744 428337 461286 489528 571116 615048 666302 856674 922572 999453 1142232 1332604 1713348 1845144 1998906 2665208 2998359 3426696 3997812 5996718 7995624 11993436 23986872