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74983072 = 257193259
BaseRepresentation
bin1000111100000…
…10011010100000
312020002112102211
410132002122200
5123143424242
611235051504
71600226353
oct436023240
9166075384
1074983072
113936498a
1221140b94
13126c49a8
149d5c29a
1568b2317
hex47826a0

74983072 has 24 divisors (see below), whose sum is σ = 147873600. Its totient is φ = 37427904.

The previous prime is 74982989. The next prime is 74983109. The reversal of 74983072 is 27038947.

It is a super-2 number, since 2×749830722 = 11244922173114368, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21379 + ... + 24637.

It is an arithmetic number, because the mean of its divisors is an integer number (6161400).

Almost surely, 274983072 is an apocalyptic number.

It is an amenable number.

74983072 is a deficient number, since it is larger than the sum of its proper divisors (72890528).

74983072 is a wasteful number, since it uses less digits than its factorization.

74983072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3988 (or 3980 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 40.

The square root of 74983072 is about 8659.2766441545. The cubic root of 74983072 is about 421.6846022009.

The spelling of 74983072 in words is "seventy-four million, nine hundred eighty-three thousand, seventy-two".

Divisors: 1 2 4 8 16 32 719 1438 2876 3259 5752 6518 11504 13036 23008 26072 52144 104288 2343221 4686442 9372884 18745768 37491536 74983072