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23140230432 = 2531121913097
BaseRepresentation
bin10101100011010000…
…111110010100100000
32012201200102111120120
4111203100332110200
5334342344333212
614344103240240
71446302466444
oct254320762440
965650374516
1023140230432
1198a5069690
124599749080
13224a14a357
141197392824
159067ae88c
hex56343e520

23140230432 has 48 divisors (see below), whose sum is σ = 66265208352. Its totient is φ = 7012190720.

The previous prime is 23140230419. The next prime is 23140230461. The reversal of 23140230432 is 23403204132.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10955493 + ... + 10957604.

It is an arithmetic number, because the mean of its divisors is an integer number (1380525174).

Almost surely, 223140230432 is an apocalyptic number.

23140230432 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

23140230432 is an abundant number, since it is smaller than the sum of its proper divisors (43124977920).

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

23140230432 is a wasteful number, since it uses less digits than its factorization.

23140230432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21913121 (or 21913113 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 24.

Adding to 23140230432 its reverse (23403204132), we get a palindrome (46543434564).

The spelling of 23140230432 in words is "twenty-three billion, one hundred forty million, two hundred thirty thousand, four hundred thirty-two".

Divisors: 1 2 3 4 6 8 11 12 16 22 24 32 33 44 48 66 88 96 132 176 264 352 528 1056 21913097 43826194 65739291 87652388 131478582 175304776 241044067 262957164 350609552 482088134 525914328 701219104 723132201 964176268 1051828656 1446264402 1928352536 2103657312 2892528804 3856705072 5785057608 7713410144 11570115216 23140230432