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102312025 = 528349307
BaseRepresentation
bin1100001100100…
…10100001011001
321010111222201021
412012102201121
5202142441100
614052522441
72351431534
oct606224131
9233458637
10102312025
11528305a2
122a320421
1318272c7a
14d833a1b
158eaea1a
hex6192859

102312025 has 12 divisors (see below), whose sum is σ = 128398032. Its totient is φ = 80861840.

The previous prime is 102311999. The next prime is 102312043. The reversal of 102312025 is 520213201.

It is not a de Polignac number, because 102312025 - 27 = 102311897 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22579 + ... + 26728.

It is an arithmetic number, because the mean of its divisors is an integer number (10699836).

Almost surely, 2102312025 is an apocalyptic number.

It is an amenable number.

102312025 is a deficient number, since it is larger than the sum of its proper divisors (26086007).

102312025 is an equidigital number, since it uses as much as digits as its factorization.

102312025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49400 (or 49395 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 102312025 is about 10114.9406819813. The cubic root of 102312025 is about 467.7088203206.

Adding to 102312025 its reverse (520213201), we get a palindrome (622525226).

The spelling of 102312025 in words is "one hundred two million, three hundred twelve thousand, twenty-five".

Divisors: 1 5 25 83 415 2075 49307 246535 1232675 4092481 20462405 102312025