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74082690 = 23251174831
BaseRepresentation
bin1000110101001…
…10100110000010
312011101210100100
410122212212002
5122431121230
611203503230
71556456343
oct432464602
9164353310
1074082690
11388aa470
1220987b16
131246ac16
149ba60ca
156785660
hex46a6982

74082690 has 48 divisors (see below), whose sum is σ = 210128256. Its totient is φ = 17959200.

The previous prime is 74082689. The next prime is 74082707. The reversal of 74082690 is 9628047.

It is a super-2 number, since 2×740826902 = 10976489915272200, which contains 22 as substring.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 36426 + ... + 38405.

It is an arithmetic number, because the mean of its divisors is an integer number (4377672).

Almost surely, 274082690 is an apocalyptic number.

74082690 is an abundant number, since it is smaller than the sum of its proper divisors (136045566).

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

74082690 is a wasteful number, since it uses less digits than its factorization.

74082690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74855 (or 74852 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 74082690 is about 8607.1301837488. The cubic root of 74082690 is about 419.9899657467.

The spelling of 74082690 in words is "seventy-four million, eighty-two thousand, six hundred ninety".

Divisors: 1 2 3 5 6 9 10 11 15 18 22 30 33 45 55 66 90 99 110 165 198 330 495 990 74831 149662 224493 374155 448986 673479 748310 823141 1122465 1346958 1646282 2244930 2469423 3367395 4115705 4938846 6734790 7408269 8231410 12347115 14816538 24694230 37041345 74082690