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102122025 = 3529411447
BaseRepresentation
bin1100001011001…
…00001000101001
321010011100002020
412011210020221
5202120401100
614044455053
72350010565
oct605441051
9233140066
10102122025
1152710875
122a24a489
1318207645
14d7c46a5
158e735a0
hex6164229

102122025 has 24 divisors (see below), whose sum is σ = 169137984. Its totient is φ = 54369600.

The previous prime is 102122011. The next prime is 102122039. The reversal of 102122025 is 520221201.

It is an interprime number because it is at equal distance from previous prime (102122011) and next prime (102122039).

It is not a de Polignac number, because 102122025 - 215 = 102089257 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a junction number, because it is equal to n+sod(n) for n = 102121995 and 102122013.

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, 69852 + ... + 71298.

It is an arithmetic number, because the mean of its divisors is an integer number (7047416).

Almost surely, 2102122025 is an apocalyptic number.

102122025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

102122025 is a deficient number, since it is larger than the sum of its proper divisors (67015959).

102122025 is a wasteful number, since it uses less digits than its factorization.

102122025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2401 (or 2396 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 102122025 is about 10105.5442703498. The cubic root of 102122025 is about 467.4191191448.

Adding to 102122025 its reverse (520221201), we get a palindrome (622343226).

The spelling of 102122025 in words is "one hundred two million, one hundred twenty-two thousand, twenty-five".

Divisors: 1 3 5 15 25 75 941 1447 2823 4341 4705 7235 14115 21705 23525 36175 70575 108525 1361627 4084881 6808135 20424405 34040675 102122025