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75940891 = 1319535801
BaseRepresentation
bin1001000011011…
…00010000011011
312021220012022121
410201230100123
5123420102031
611311402111
71611326005
oct441542033
9167805277
1075940891
1139959574
1221523337
131296b950
14a12b375
156a01011
hex486c41b

75940891 has 16 divisors (see below), whose sum is σ = 87726240. Its totient is φ = 65145600.

The previous prime is 75940889. The next prime is 75940901. The reversal of 75940891 is 19804957.

It is not a de Polignac number, because 75940891 - 21 = 75940889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (75940801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10191 + ... + 15991.

It is an arithmetic number, because the mean of its divisors is an integer number (5482890).

Almost surely, 275940891 is an apocalyptic number.

75940891 is a deficient number, since it is larger than the sum of its proper divisors (11785349).

75940891 is a wasteful number, since it uses less digits than its factorization.

75940891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5886.

The product of its (nonzero) digits is 90720, while the sum is 43.

The square root of 75940891 is about 8714.4070940024. The cubic root of 75940891 is about 423.4725162176.

The spelling of 75940891 in words is "seventy-five million, nine hundred forty thousand, eight hundred ninety-one".

Divisors: 1 13 19 53 247 689 1007 5801 13091 75413 110219 307453 1432847 3996889 5841607 75940891