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23000025447 = 327365079769
BaseRepresentation
bin10101011010111010…
…001000100101100111
32012100220121100111100
4111122322020211213
5334101001303242
614322134211143
71442650663530
oct253272104547
965326540440
1023000025447
119832a075a3
12455a7b3ab3
13222709a919
1411828d7687
158e931754c
hex55ae88967

23000025447 has 12 divisors (see below), whose sum is σ = 37968296080. Its totient is φ = 13142871648.

The previous prime is 23000025437. The next prime is 23000025467. The reversal of 23000025447 is 74452000032.

It is not a de Polignac number, because 23000025447 - 214 = 23000009063 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23000025447.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23000025437) 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, 182539822 + ... + 182539947.

Almost surely, 223000025447 is an apocalyptic number.

23000025447 is a deficient number, since it is larger than the sum of its proper divisors (14968270633).

23000025447 is a wasteful number, since it uses less digits than its factorization.

23000025447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 365079782 (or 365079779 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 27.

Adding to 23000025447 its reverse (74452000032), we get a palindrome (97452025479).

The spelling of 23000025447 in words is "twenty-three billion, twenty-five thousand, four hundred forty-seven".

Divisors: 1 3 7 9 21 63 365079769 1095239307 2555558383 3285717921 7666675149 23000025447