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23681235688 = 23111728091151
BaseRepresentation
bin10110000011100000…
…101111101011101000
32021010101102102021021
4112003200233223220
5341444344020223
614513511022224
71465562116315
oct260340575350
967111372237
1023681235688
11a052492970
12470a96a974
13230525b6c6
14120917dd0c
1593902765d
hex58382fae8

23681235688 has 96 divisors (see below), whose sum is σ = 51564211200. Its totient is φ = 10109696000.

The previous prime is 23681235659. The next prime is 23681235703. The reversal of 23681235688 is 88653218632.

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 23 ways as a sum of consecutive naturals, for example, 20573913 + ... + 20575063.

It is an arithmetic number, because the mean of its divisors is an integer number (537127200).

Almost surely, 223681235688 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 23681235688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25782105600).

23681235688 is an abundant number, since it is smaller than the sum of its proper divisors (27882975512).

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

23681235688 is a wasteful number, since it uses less digits than its factorization.

23681235688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2011 (or 1990 counting only the distinct ones).

The product of its digits is 3317760, while the sum is 52.

The spelling of 23681235688 in words is "twenty-three billion, six hundred eighty-one million, two hundred thirty-five thousand, six hundred eighty-eight".

Divisors: 1 2 4 8 11 17 22 34 44 68 88 136 187 289 374 578 748 809 1151 1156 1496 1618 2302 2312 3179 3236 4604 6358 6472 8899 9208 12661 12716 13753 17798 19567 25322 25432 27506 35596 39134 50644 55012 71192 78268 101288 110024 151283 156536 215237 233801 302566 332639 430474 467602 605132 665278 860948 931159 935204 1210264 1330556 1721896 1862318 1870408 2571811 2661112 3659029 3724636 5143622 7318058 7449272 10242749 10287244 14636116 15829703 20485498 20574488 29272232 31659406 40970996 63318812 81941992 126637624 174126733 269104951 348253466 538209902 696506932 1076419804 1393013864 2152839608 2960154461 5920308922 11840617844 23681235688