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74680844 = 2274165053
BaseRepresentation
bin1000111001110…
…00101000001100
312012112011212012
410130320220030
5123104241334
611224400352
71564530260
oct434705014
9165464765
1074680844
1139178907
12210160b8
131261a264
149cc00a0
1568529ce
hex4738a0c

74680844 has 24 divisors (see below), whose sum is σ = 153007008. Its totient is φ = 31224960.

The previous prime is 74680841. The next prime is 74680877. The reversal of 74680844 is 44808647.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is not an unprimeable number, because it can be changed into a prime (74680841) 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 7 ways as a sum of consecutive naturals, for example, 31379 + ... + 33674.

It is an arithmetic number, because the mean of its divisors is an integer number (6375292).

Almost surely, 274680844 is an apocalyptic number.

It is an amenable number.

74680844 is an abundant number, since it is smaller than the sum of its proper divisors (78326164).

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

74680844 is a wasteful number, since it uses less digits than its factorization.

74680844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65105 (or 65103 counting only the distinct ones).

The product of its (nonzero) digits is 172032, while the sum is 41.

The square root of 74680844 is about 8641.8079126997. The cubic root of 74680844 is about 421.1172896855.

The spelling of 74680844 in words is "seventy-four million, six hundred eighty thousand, eight hundred forty-four".

Divisors: 1 2 4 7 14 28 41 82 164 287 574 1148 65053 130106 260212 455371 910742 1821484 2667173 5334346 10668692 18670211 37340422 74680844