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69925 = 522797
BaseRepresentation
bin10001000100100101
310112220211
4101010211
54214200
61255421
7410602
oct210445
9115824
1069925
1148599
1234571
1325a9b
141b6a9
1515aba
hex11125

69925 has 6 divisors (see below), whose sum is σ = 86738. Its totient is φ = 55920.

The previous prime is 69911. The next prime is 69929. The reversal of 69925 is 52996.

69925 = 102 + 112 + ... + 592.

It can be written as a sum of positive squares in 3 ways, for example, as 9409 + 60516 = 97^2 + 246^2 .

It is a de Polignac number, because none of the positive numbers 2k-69925 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69929) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1374 + ... + 1423.

269925 is an apocalyptic number.

It is an amenable number.

69925 is a deficient number, since it is larger than the sum of its proper divisors (16813).

69925 is a wasteful number, since it uses less digits than its factorization.

69925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2807 (or 2802 counting only the distinct ones).

The product of its digits is 4860, while the sum is 31.

The square root of 69925 is about 264.4333564435. The cubic root of 69925 is about 41.1981288621.

The spelling of 69925 in words is "sixty-nine thousand, nine hundred twenty-five".

Divisors: 1 5 25 2797 13985 69925