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74073930 = 23571720749
BaseRepresentation
bin1000110101001…
…00011101001010
312011101100022220
410122210131022
5122430331210
611203354510
71556421660
oct432443512
9164340286
1074073930
11388a3927
1220982a36
1312466c38
149ba2c30
156782c70
hex46a474a

74073930 has 64 divisors (see below), whose sum is σ = 215136000. Its totient is φ = 15934464.

The previous prime is 74073887. The next prime is 74073949. The reversal of 74073930 is 3937047.

It is a junction number, because it is equal to n+sod(n) for n = 74073891 and 74073900.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6805 + ... + 13944.

It is an arithmetic number, because the mean of its divisors is an integer number (3361500).

Almost surely, 274073930 is an apocalyptic number.

74073930 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

74073930 is an abundant number, since it is smaller than the sum of its proper divisors (141062070).

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

74073930 is a wasteful number, since it uses less digits than its factorization.

74073930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20783.

The product of its (nonzero) digits is 15876, while the sum is 33.

The square root of 74073930 is about 8606.6212882873. The cubic root of 74073930 is about 419.9734110152.

The spelling of 74073930 in words is "seventy-four million, seventy-three thousand, nine hundred thirty".

Divisors: 1 2 3 5 6 7 10 14 15 17 21 30 34 35 42 51 70 85 102 105 119 170 210 238 255 357 510 595 714 1190 1785 3570 20749 41498 62247 103745 124494 145243 207490 290486 311235 352733 435729 622470 705466 726215 871458 1058199 1452430 1763665 2116398 2178645 2469131 3527330 4357290 4938262 5290995 7407393 10581990 12345655 14814786 24691310 37036965 74073930