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75384057 = 373589717
BaseRepresentation
bin1000111111001…
…00010011111001
312020211220111010
410133210103321
5123244242212
611251424133
71603516410
oct437442371
9166756433
1075384057
1139609181
12212b5049
1312805368
14a024477
15694103c
hex47e44f9

75384057 has 8 divisors (see below), whose sum is σ = 114870976. Its totient is φ = 43076592.

The previous prime is 75384053. The next prime is 75384061. The reversal of 75384057 is 75048357.

It is an interprime number because it is at equal distance from previous prime (75384053) and next prime (75384061).

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

It is not a de Polignac number, because 75384057 - 22 = 75384053 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (75384053) 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, 1794838 + ... + 1794879.

It is an arithmetic number, because the mean of its divisors is an integer number (14358872).

Almost surely, 275384057 is an apocalyptic number.

It is an amenable number.

75384057 is a deficient number, since it is larger than the sum of its proper divisors (39486919).

75384057 is a wasteful number, since it uses less digits than its factorization.

75384057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3589727.

The product of its (nonzero) digits is 117600, while the sum is 39.

The square root of 75384057 is about 8682.3992651801. The cubic root of 75384057 is about 422.4349434745.

The spelling of 75384057 in words is "seventy-five million, three hundred eighty-four thousand, fifty-seven".

Divisors: 1 3 7 21 3589717 10769151 25128019 75384057