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75828920 = 2352238501
BaseRepresentation
bin1001000010100…
…00111010111000
312021200111201112
410201100322320
5123403011140
611305135452
71610351366
oct441207270
9167614645
1075828920
1139892432
122148a588
131292c9ab
14a0dc636
1569ccc65
hex4850eb8

75828920 has 32 divisors (see below), whose sum is σ = 171400320. Its totient is φ = 30192000.

The previous prime is 75828919. The next prime is 75828941. The reversal of 75828920 is 2982857.

It is a happy number.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 4670 + ... + 13170.

It is an arithmetic number, because the mean of its divisors is an integer number (5356260).

Almost surely, 275828920 is an apocalyptic number.

It is an amenable number.

75828920 is an abundant number, since it is smaller than the sum of its proper divisors (95571400).

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

75828920 is a wasteful number, since it uses less digits than its factorization.

75828920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8735 (or 8731 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 41.

The square root of 75828920 is about 8707.9802480254. The cubic root of 75828920 is about 423.2642842445.

The spelling of 75828920 in words is "seventy-five million, eight hundred twenty-eight thousand, nine hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 223 446 892 1115 1784 2230 4460 8501 8920 17002 34004 42505 68008 85010 170020 340040 1895723 3791446 7582892 9478615 15165784 18957230 37914460 75828920