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75465590317 = 139901586309
BaseRepresentation
bin100011001001000011…
…0011000011000101101
321012210022211012021121
41012102012120120231
52214023142342232
654400213300541
75311051635205
oct1062206303055
9235708735247
1075465590317
112a0063a3a67
1212761334751
1371688a1170
14391c873405
151e6a384d97
hex119219862d

75465590317 has 8 divisors (see below), whose sum is σ = 81278982680. Its totient is φ = 69653390400.

The previous prime is 75465590281. The next prime is 75465590327. The reversal of 75465590317 is 71309556457.

It can be written as a sum of positive squares in 4 ways, for example, as 20122557316 + 55343033001 = 141854^2 + 235251^2 .

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-75465590317 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75465590327) 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, 164442 + ... + 421867.

It is an arithmetic number, because the mean of its divisors is an integer number (10159872835).

Almost surely, 275465590317 is an apocalyptic number.

It is an amenable number.

75465590317 is a deficient number, since it is larger than the sum of its proper divisors (5813392363).

75465590317 is a wasteful number, since it uses less digits than its factorization.

75465590317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 596223.

The product of its (nonzero) digits is 3969000, while the sum is 52.

The spelling of 75465590317 in words is "seventy-five billion, four hundred sixty-five million, five hundred ninety thousand, three hundred seventeen".

Divisors: 1 13 9901 128713 586309 7622017 5805045409 75465590317