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255374720 = 275399023
BaseRepresentation
bin11110011100010…
…11010110000000
3122210112101020222
433032023112000
51010333442340
641201322212
76220435466
oct1716132600
9583471228
10255374720
11121174897
1271636368
1340ba4c03
1425cb8836
15176468b5
hexf38b580

255374720 has 32 divisors (see below), whose sum is σ = 610506720. Its totient is φ = 102149632.

The previous prime is 255374699. The next prime is 255374737. The reversal of 255374720 is 27473552.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 198872 + ... + 200151.

It is an arithmetic number, because the mean of its divisors is an integer number (19078335).

Almost surely, 2255374720 is an apocalyptic number.

255374720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

255374720 is an abundant number, since it is smaller than the sum of its proper divisors (355132000).

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

255374720 is an equidigital number, since it uses as much as digits as its factorization.

255374720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 399042 (or 399030 counting only the distinct ones).

The product of its (nonzero) digits is 58800, while the sum is 35.

The square root of 255374720 is about 15980.4480537937. The cubic root of 255374720 is about 634.4430357114.

The spelling of 255374720 in words is "two hundred fifty-five million, three hundred seventy-four thousand, seven hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 32 40 64 80 128 160 320 640 399023 798046 1596092 1995115 3192184 3990230 6384368 7980460 12768736 15960920 25537472 31921840 51074944 63843680 127687360 255374720