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74693031 = 373556811
BaseRepresentation
bin1000111001110…
…11100110100111
312012112210120120
410130323212213
5123110134111
611224533023
71564610640
oct434734647
9165483516
1074693031
1139186a86
1221021173
131262297a
149cc46c7
156856406
hex473b9a7

74693031 has 8 divisors (see below), whose sum is σ = 113817984. Its totient is φ = 42681720.

The previous prime is 74693027. The next prime is 74693051. The reversal of 74693031 is 13039647.

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

It is not a de Polignac number, because 74693031 - 22 = 74693027 is a prime.

It is a super-2 number, since 2×746930312 = 11158097759933922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 74692983 and 74693001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74693051) 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, 1778385 + ... + 1778426.

It is an arithmetic number, because the mean of its divisors is an integer number (14227248).

Almost surely, 274693031 is an apocalyptic number.

74693031 is a deficient number, since it is larger than the sum of its proper divisors (39124953).

74693031 is a wasteful number, since it uses less digits than its factorization.

74693031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3556821.

The product of its (nonzero) digits is 13608, while the sum is 33.

The square root of 74693031 is about 8642.5130025936. The cubic root of 74693031 is about 421.1401955027.

The spelling of 74693031 in words is "seventy-four million, six hundred ninety-three thousand, thirty-one".

Divisors: 1 3 7 21 3556811 10670433 24897677 74693031