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23120253512525 = 5213148347969819
BaseRepresentation
bin1010100000111000110100…
…11111110110101101001101
310000212021102012221011102002
411100130122133312231031
511012300234344400100
6121101144155442045
74604245302202661
oct520343237665515
9100767365834362
1023120253512525
117404276400614
122714a3a156325
13cb92cc6a03c0
1459d05200c8a1
152a162695a2d5
hex15071a7f6b4d

23120253512525 has 24 divisors (see below), whose sum is σ = 30895250389920. Its totient is φ = 17061904866240.

The previous prime is 23120253512443. The next prime is 23120253512561. The reversal of 23120253512525 is 52521535202132.

It is not a de Polignac number, because 23120253512525 - 220 = 23120252463949 is a prime.

It is a super-2 number, since 2×231202535125252 (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23502935 + ... + 24466884.

It is an arithmetic number, because the mean of its divisors is an integer number (1287302099580).

Almost surely, 223120253512525 is an apocalyptic number.

23120253512525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

23120253512525 is a deficient number, since it is larger than the sum of its proper divisors (7774996877395).

23120253512525 is a wasteful number, since it uses less digits than its factorization.

23120253512525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47971325 (or 47971320 counting only the distinct ones).

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

Adding to 23120253512525 its reverse (52521535202132), we get a palindrome (75641788714657).

The spelling of 23120253512525 in words is "twenty-three trillion, one hundred twenty billion, two hundred fifty-three million, five hundred twelve thousand, five hundred twenty-five".

Divisors: 1 5 13 25 65 325 1483 7415 19279 37075 96395 481975 47969819 239849095 623607647 1199245475 3118038235 15590191175 71139241577 355696207885 924810140501 1778481039425 4624050702505 23120253512525