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78952475 = 527264451
BaseRepresentation
bin1001011010010…
…11100000011011
312111120012102202
410231023200123
5130202434400
611500120415
71646041100
oct455134033
9174505382
1078952475
1140626188
122253610b
1313484654
14a6b2aa7
156de84d5
hex4b4b81b

78952475 has 18 divisors (see below), whose sum is σ = 113886684. Its totient is φ = 54138000.

The previous prime is 78952469. The next prime is 78952477. The reversal of 78952475 is 57425987.

It is a happy number.

It is not a de Polignac number, because 78952475 - 222 = 74758171 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78952477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 31001 + ... + 33450.

It is an arithmetic number, because the mean of its divisors is an integer number (6327038).

Almost surely, 278952475 is an apocalyptic number.

78952475 is a deficient number, since it is larger than the sum of its proper divisors (34934209).

78952475 is a wasteful number, since it uses less digits than its factorization.

78952475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64475 (or 64463 counting only the distinct ones).

The product of its digits is 705600, while the sum is 47.

The square root of 78952475 is about 8885.5205249890. The cubic root of 78952475 is about 428.9979823242.

The spelling of 78952475 in words is "seventy-eight million, nine hundred fifty-two thousand, four hundred seventy-five".

Divisors: 1 5 7 25 35 49 175 245 1225 64451 322255 451157 1611275 2255785 3158099 11278925 15790495 78952475