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74692988 = 2222782261
BaseRepresentation
bin1000111001110…
…11100101111100
312012112210111222
410130323211330
5123110133423
611224532512
71564610546
oct434734574
9165483458
1074692988
1139186a47
1221021138
1312622946
149cc4696
1568563c8
hex473b97c

74692988 has 12 divisors (see below), whose sum is σ = 131290152. Its totient is φ = 37181520.

The previous prime is 74692987. The next prime is 74692991. The reversal of 74692988 is 88929647.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74692987) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40223 + ... + 42038.

It is an arithmetic number, because the mean of its divisors is an integer number (10940846).

Almost surely, 274692988 is an apocalyptic number.

It is an amenable number.

74692988 is a deficient number, since it is larger than the sum of its proper divisors (56597164).

74692988 is a wasteful number, since it uses less digits than its factorization.

74692988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82492 (or 82490 counting only the distinct ones).

The product of its digits is 1741824, while the sum is 53.

The square root of 74692988 is about 8642.5105148909. The cubic root of 74692988 is about 421.1401146873.

The spelling of 74692988 in words is "seventy-four million, six hundred ninety-two thousand, nine hundred eighty-eight".

Divisors: 1 2 4 227 454 908 82261 164522 329044 18673247 37346494 74692988