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7825285 = 513131919
BaseRepresentation
bin11101110110011110000101
3112201120021101
4131312132011
54000402120
6435420101
7123341146
oct35663605
915646241
107825285
114465286
122754631
13180ca60
141079acd
15a4890a
hex776785

7825285 has 16 divisors (see below), whose sum is σ = 10200960. Its totient is φ = 5728320.

The previous prime is 7825261. The next prime is 7825327. The reversal of 7825285 is 5825287.

It is not a de Polignac number, because 7825285 - 211 = 7823237 is a prime.

It is a super-2 number, since 2×78252852 = 122470170662450, which 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 15 ways as a sum of consecutive naturals, for example, 8056 + ... + 8974.

It is an arithmetic number, because the mean of its divisors is an integer number (637560).

Almost surely, 27825285 is an apocalyptic number.

It is an amenable number.

7825285 is a deficient number, since it is larger than the sum of its proper divisors (2375675).

7825285 is a wasteful number, since it uses less digits than its factorization.

7825285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1068.

The product of its digits is 44800, while the sum is 37.

The square root of 7825285 is about 2797.3710872889. The cubic root of 7825285 is about 198.5333120921.

The spelling of 7825285 in words is "seven million, eight hundred twenty-five thousand, two hundred eighty-five".

Divisors: 1 5 13 65 131 655 919 1703 4595 8515 11947 59735 120389 601945 1565057 7825285