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74683072 = 261961417
BaseRepresentation
bin1000111001110…
…01001011000000
312012112021220201
410130321023000
5123104324242
611224414544
71564536622
oct434711300
9165467821
1074683072
113917a552
1221017454
131261b289
149cc0c12
1568534b7
hex47392c0

74683072 has 28 divisors (see below), whose sum is σ = 156001720. Its totient is φ = 35375616.

The previous prime is 74683069. The next prime is 74683073. The reversal of 74683072 is 27038647.

It is a super-2 number, since 2×746830722 = 11155122486714368, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (74683073) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 29493 + ... + 31924.

It is an arithmetic number, because the mean of its divisors is an integer number (5571490).

Almost surely, 274683072 is an apocalyptic number.

It is an amenable number.

74683072 is an abundant number, since it is smaller than the sum of its proper divisors (81318648).

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

74683072 is a wasteful number, since it uses less digits than its factorization.

74683072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61448 (or 61438 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 37.

The square root of 74683072 is about 8641.9368199496. The cubic root of 74683072 is about 421.1214774618.

The spelling of 74683072 in words is "seventy-four million, six hundred eighty-three thousand, seventy-two".

Divisors: 1 2 4 8 16 19 32 38 64 76 152 304 608 1216 61417 122834 245668 491336 982672 1166923 1965344 2333846 3930688 4667692 9335384 18670768 37341536 74683072