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75383955 = 3251675199
BaseRepresentation
bin1000111111001…
…00010010010011
312020211220100100
410133210102103
5123244241310
611251423443
71603516203
oct437442223
9166756310
1075383955
1139609099
12212b4b83
13128052ba
14a024403
156940ec0
hex47e4493

75383955 has 12 divisors (see below), whose sum is σ = 130665600. Its totient is φ = 40204752.

The previous prime is 75383947. The next prime is 75383969. The reversal of 75383955 is 55938357.

It is not a de Polignac number, because 75383955 - 23 = 75383947 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 1675199 = 75383955 / (7 + 5 + 3 + 8 + 3 + 9 + 5 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 75383955.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 837555 + ... + 837644.

It is an arithmetic number, because the mean of its divisors is an integer number (10888800).

Almost surely, 275383955 is an apocalyptic number.

75383955 is a deficient number, since it is larger than the sum of its proper divisors (55281645).

75383955 is a wasteful number, since it uses less digits than its factorization.

75383955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1675210 (or 1675207 counting only the distinct ones).

The product of its digits is 567000, while the sum is 45.

The square root of 75383955 is about 8682.3933912257. The cubic root of 75383955 is about 422.4347529462.

The spelling of 75383955 in words is "seventy-five million, three hundred eighty-three thousand, nine hundred fifty-five".

Divisors: 1 3 5 9 15 45 1675199 5025597 8375995 15076791 25127985 75383955