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23031922749 = 311263448823
BaseRepresentation
bin10101011100110011…
…110100000000111101
32012110010121220100220
4111130303310000331
5334132133011444
614325234011553
71443516053553
oct253463640075
965403556326
1023031922749
119849a13500
124569416bb9
132230888374
141186c3bbd3
158ec018619
hex55ccf403d

23031922749 has 12 divisors (see below), whose sum is σ = 33754774368. Its totient is φ = 13958740840.

The previous prime is 23031922741. The next prime is 23031922769. The reversal of 23031922749 is 94722913032.

It is not a de Polignac number, because 23031922749 - 23 = 23031922741 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23031922749.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23031922741) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31724049 + ... + 31724774.

It is an arithmetic number, because the mean of its divisors is an integer number (2812897864).

Almost surely, 223031922749 is an apocalyptic number.

It is an amenable number.

23031922749 is a deficient number, since it is larger than the sum of its proper divisors (10722851619).

23031922749 is a wasteful number, since it uses less digits than its factorization.

23031922749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63448848 (or 63448837 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 42.

The spelling of 23031922749 in words is "twenty-three billion, thirty-one million, nine hundred twenty-two thousand, seven hundred forty-nine".

Divisors: 1 3 11 33 121 363 63448823 190346469 697937053 2093811159 7677307583 23031922749