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75865253 = 1633131487
BaseRepresentation
bin1001000010110…
…01110010100101
312021202100120012
410201121302211
5123410142003
611310020005
71610562332
oct441316245
9167670505
1075865253
1139907762
12214a7605
13129433a9
14a10b989
1569d88d8
hex4859ca5

75865253 has 8 divisors (see below), whose sum is σ = 76626048. Its totient is φ = 75108384.

The previous prime is 75865219. The next prime is 75865267. The reversal of 75865253 is 35256857.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-75865253 is a prime.

It is a super-2 number, since 2×758652532 = 11511073225508018, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 75865253.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71865253) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50276 + ... + 51762.

It is an arithmetic number, because the mean of its divisors is an integer number (9578256).

Almost surely, 275865253 is an apocalyptic number.

It is an amenable number.

75865253 is a deficient number, since it is larger than the sum of its proper divisors (760795).

75865253 is a wasteful number, since it uses less digits than its factorization.

75865253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1963.

The product of its digits is 252000, while the sum is 41.

The square root of 75865253 is about 8710.0661880378. The cubic root of 75865253 is about 423.3318750165.

The spelling of 75865253 in words is "seventy-five million, eight hundred sixty-five thousand, two hundred fifty-three".

Divisors: 1 163 313 1487 51019 242381 465431 75865253