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23130225215525 = 5231412572832443
BaseRepresentation
bin1010100001001011011001…
…10110111000100000100101
310000220020011011110011100102
411100211230312320200211
511012431200123344100
6121105513451553445
74605050354241251
oct520455466704045
9100806134404312
1023130225215525
11740852314867a
12271696175b885
13cba22b560a8c
1459d71a4c7261
152a1a0c0c8cd5
hex15096cdb8825

23130225215525 has 48 divisors (see below), whose sum is σ = 30446824278528. Its totient is φ = 17402523648000.

The previous prime is 23130225215479. The next prime is 23130225215543. The reversal of 23130225215525 is 52551252203132.

It is not a de Polignac number, because 23130225215525 - 222 = 23130221021221 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6749954 + ... + 9582396.

It is an arithmetic number, because the mean of its divisors is an integer number (634308839136).

Almost surely, 223130225215525 is an apocalyptic number.

23130225215525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

23130225215525 is a deficient number, since it is larger than the sum of its proper divisors (7316599063003).

23130225215525 is a wasteful number, since it uses less digits than its factorization.

23130225215525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2832782 (or 2832777 counting only the distinct ones).

The product of its (nonzero) digits is 180000, while the sum is 38.

Adding to 23130225215525 its reverse (52551252203132), we get a palindrome (75681477418657).

The spelling of 23130225215525 in words is "twenty-three trillion, one hundred thirty billion, two hundred twenty-five million, two hundred fifteen thousand, five hundred twenty-five".

Divisors: 1 5 25 31 41 155 205 257 775 1025 1271 1285 6355 6425 7967 10537 31775 39835 52685 199175 263425 326647 1633235 2832443 8166175 14162215 70811075 87805733 116130163 439028665 580650815 727937851 2195143325 2903254075 3600035053 3639689255 18000175265 18198446275 22566073381 29845451891 90000876325 112830366905 149227259455 564151834525 746136297275 925209008621 4626045043105 23130225215525