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75468819 = 3231093751
BaseRepresentation
bin1000111111110…
…01000000010011
312021000012202110
410133321000103
5123310000234
611253320403
71604321466
oct437710023
9167005673
1075468819
1139666928
1221336103
1312834b0a
14a0472dd
15695b1e9
hex47f9013

75468819 has 8 divisors (see below), whose sum is σ = 105000192. Its totient is φ = 48125000.

The previous prime is 75468781. The next prime is 75468851. The reversal of 75468819 is 91886457.

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

It is a cyclic number.

It is not a de Polignac number, because 75468819 - 27 = 75468691 is a prime.

It is a super-2 number, since 2×754688192 = 11391085282509522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (75468859) 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 7 ways as a sum of consecutive naturals, for example, 546807 + ... + 546944.

It is an arithmetic number, because the mean of its divisors is an integer number (13125024).

Almost surely, 275468819 is an apocalyptic number.

75468819 is a deficient number, since it is larger than the sum of its proper divisors (29531373).

75468819 is a wasteful number, since it uses less digits than its factorization.

75468819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1093777.

The product of its digits is 483840, while the sum is 48.

The square root of 75468819 is about 8687.2791482719. The cubic root of 75468819 is about 422.5932130972.

The spelling of 75468819 in words is "seventy-five million, four hundred sixty-eight thousand, eight hundred nineteen".

Divisors: 1 3 23 69 1093751 3281253 25156273 75468819