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74010144 = 25313311913
BaseRepresentation
bin1000110100101…
…00111000100000
312011021002211110
410122110320200
5122421311034
611202143320
71556035005
oct432247040
9164232743
1074010144
113885aa0a
1220951b40
1312443bb0
149b878ac
15676dde9
hex4694e20

74010144 has 96 divisors (see below), whose sum is σ = 216082944. Its totient is φ = 22026240.

The previous prime is 74010119. The next prime is 74010161. The reversal of 74010144 is 44101047.

It is a tau number, because it is divible by the number of its divisors (96).

It is a self number, because there is not a number n which added to its sum of digits gives 74010144.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37732 + ... + 39644.

It is an arithmetic number, because the mean of its divisors is an integer number (2250864).

Almost surely, 274010144 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 74010144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (108041472).

74010144 is an abundant number, since it is smaller than the sum of its proper divisors (142072800).

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

74010144 is a wasteful number, since it uses less digits than its factorization.

74010144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1970 (or 1962 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 21.

The square root of 74010144 is about 8602.9148548617. The cubic root of 74010144 is about 419.8528282543.

The spelling of 74010144 in words is "seventy-four million, ten thousand, one hundred forty-four".

Divisors: 1 2 3 4 6 8 12 13 16 24 26 31 32 39 48 52 62 78 93 96 104 124 156 186 208 248 312 372 403 416 496 624 744 806 992 1209 1248 1488 1612 1913 2418 2976 3224 3826 4836 5739 6448 7652 9672 11478 12896 15304 19344 22956 24869 30608 38688 45912 49738 59303 61216 74607 91824 99476 118606 149214 177909 183648 198952 237212 298428 355818 397904 474424 596856 711636 770939 795808 948848 1193712 1423272 1541878 1897696 2312817 2387424 2846544 3083756 4625634 5693088 6167512 9251268 12335024 18502536 24670048 37005072 74010144