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45742980 = 22353124593
BaseRepresentation
bin1010111001111…
…1101110000100
310012001222120110
42232133232010
543202233410
64312233020
71063544313
oct256375604
9105058513
1045742980
1123903418
121339b770
13962786a
14610a27a
154038720
hex2b9fb84

45742980 has 48 divisors (see below), whose sum is σ = 132217344. Its totient is φ = 11804160.

The previous prime is 45742967. The next prime is 45743053. The reversal of 45742980 is 8924754.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

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, 10437 + ... + 14156.

It is an arithmetic number, because the mean of its divisors is an integer number (2754528).

Almost surely, 245742980 is an apocalyptic number.

It is an amenable number.

45742980 is an abundant number, since it is smaller than the sum of its proper divisors (86474364).

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

45742980 is a wasteful number, since it uses less digits than its factorization.

45742980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24636 (or 24634 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 39.

The square root of 45742980 is about 6763.3556759940. The cubic root of 45742980 is about 357.6362106679.

The spelling of 45742980 in words is "forty-five million, seven hundred forty-two thousand, nine hundred eighty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 31 60 62 93 124 155 186 310 372 465 620 930 1860 24593 49186 73779 98372 122965 147558 245930 295116 368895 491860 737790 762383 1475580 1524766 2287149 3049532 3811915 4574298 7623830 9148596 11435745 15247660 22871490 45742980