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23728749807 = 379671168501
BaseRepresentation
bin10110000110010101…
…111111110011101111
32021020200211101101110
4112012111333303233
5342044024443212
614522325243103
71500010021410
oct260625776357
967220741343
1023728749807
11a077295a34
124722863493
132312056479
1412115cb807
1593d2b0a3c
hex58657fcef

23728749807 has 16 divisors (see below), whose sum is σ = 36195517952. Its totient is φ = 13545252000.

The previous prime is 23728749769. The next prime is 23728749823. The reversal of 23728749807 is 70894782732.

It is not a de Polignac number, because 23728749807 - 216 = 23728684271 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23728749827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 563944 + ... + 604557.

It is an arithmetic number, because the mean of its divisors is an integer number (2262219872).

Almost surely, 223728749807 is an apocalyptic number.

23728749807 is a deficient number, since it is larger than the sum of its proper divisors (12466768145).

23728749807 is a wasteful number, since it uses less digits than its factorization.

23728749807 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1169478.

The product of its (nonzero) digits is 9483264, while the sum is 57.

The spelling of 23728749807 in words is "twenty-three billion, seven hundred twenty-eight million, seven hundred forty-nine thousand, eight hundred seven".

Divisors: 1 3 7 21 967 2901 6769 20307 1168501 3505503 8179507 24538521 1129940467 3389821401 7909583269 23728749807