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23857645323 = 3431009918313
BaseRepresentation
bin10110001110000001…
…101100011100001011
32021120200100221210110
4112032001230130023
5342330024122243
614543212045403
71503133432161
oct261601543413
967520327713
1023857645323
11a133023056
124759a63863
1323329762c5
141224781231
15949771e33
hex58e06c70b

23857645323 has 16 divisors (see below), whose sum is σ = 32554966400. Its totient is φ = 15532824384.

The previous prime is 23857645313. The next prime is 23857645337. The reversal of 23857645323 is 32354675832.

It is a de Polignac number, because none of the positive numbers 2k-23857645323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23857645313) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1293615 + ... + 1311927.

It is an arithmetic number, because the mean of its divisors is an integer number (2034685400).

Almost surely, 223857645323 is an apocalyptic number.

23857645323 is a deficient number, since it is larger than the sum of its proper divisors (8697321077).

23857645323 is a wasteful number, since it uses less digits than its factorization.

23857645323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28458.

The product of its digits is 3628800, while the sum is 48.

The spelling of 23857645323 in words is "twenty-three billion, eight hundred fifty-seven million, six hundred forty-five thousand, three hundred twenty-three".

Divisors: 1 3 43 129 10099 18313 30297 54939 434257 787459 1302771 2362377 184942987 554828961 7952548441 23857645323