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255748960 = 2552369497
BaseRepresentation
bin11110011111001…
…10101101100000
3122211020101121201
433033212231200
51010432431320
641213330544
76223554535
oct1717465540
9584211551
10255748960
111213aaa85
1271796a54
1340ca635c
1425d74d8c
15176bc70a
hexf3e6b60

255748960 has 48 divisors (see below), whose sum is σ = 630485856. Its totient is φ = 97850368.

The previous prime is 255748951. The next prime is 255748967. The reversal of 255748960 is 69847552.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is a self number, because there is not a number n which added to its sum of digits gives 255748960.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255748967) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31069 + ... + 38428.

It is an arithmetic number, because the mean of its divisors is an integer number (13135122).

Almost surely, 2255748960 is an apocalyptic number.

255748960 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

255748960 is an abundant number, since it is smaller than the sum of its proper divisors (374736896).

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

255748960 is a wasteful number, since it uses less digits than its factorization.

255748960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69535 (or 69527 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 46.

The square root of 255748960 is about 15992.1530758056. The cubic root of 255748960 is about 634.7528002190.

The spelling of 255748960 in words is "two hundred fifty-five million, seven hundred forty-eight thousand, nine hundred sixty".

Divisors: 1 2 4 5 8 10 16 20 23 32 40 46 80 92 115 160 184 230 368 460 736 920 1840 3680 69497 138994 277988 347485 555976 694970 1111952 1389940 1598431 2223904 2779880 3196862 5559760 6393724 7992155 11119520 12787448 15984310 25574896 31968620 51149792 63937240 127874480 255748960