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75383316 = 22322093981
BaseRepresentation
bin1000111111001…
…00001000010100
312020211212110200
410133210020110
5123244231231
611251420500
71603514301
oct437441024
9166755420
1075383316
1139608668
12212b4730
1312804c18
14a0240a8
156940be6
hex47e4214

75383316 has 18 divisors (see below), whose sum is σ = 190552362. Its totient is φ = 25127760.

The previous prime is 75383309. The next prime is 75383323. The reversal of 75383316 is 61338357.

It is an interprime number because it is at equal distance from previous prime (75383309) and next prime (75383323).

It can be written as a sum of positive squares in only one way, i.e., 46867716 + 28515600 = 6846^2 + 5340^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 2093981 = 75383316 / (7 + 5 + 3 + 8 + 3 + 3 + 1 + 6).

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 1046955 + ... + 1047026.

Almost surely, 275383316 is an apocalyptic number.

It is an amenable number.

75383316 is an abundant number, since it is smaller than the sum of its proper divisors (115169046).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

75383316 is a wasteful number, since it uses less digits than its factorization.

75383316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2093991 (or 2093986 counting only the distinct ones).

The product of its digits is 45360, while the sum is 36.

The square root of 75383316 is about 8682.3565925387. The cubic root of 75383316 is about 422.4335593387.

The spelling of 75383316 in words is "seventy-five million, three hundred eighty-three thousand, three hundred sixteen".

Divisors: 1 2 3 4 6 9 12 18 36 2093981 4187962 6281943 8375924 12563886 18845829 25127772 37691658 75383316