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255916032 = 2113231811
BaseRepresentation
bin11110100000011…
…11100000000000
3122211112212210120
433100033200000
51011003303112
641221100240
76225151611
oct1720174000
9584485716
10255916032
11121504559
1271857680
1341034408
1425db9c08
1517701e8c
hexf40f800

255916032 has 96 divisors (see below), whose sum is σ = 712333440. Its totient is φ = 81551360.

The previous prime is 255916019. The next prime is 255916033. The reversal of 255916032 is 230619552.

It is a tau number, because it is divible by the number of its divisors (96).

It is a junction number, because it is equal to n+sod(n) for n = 255915984 and 255916002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255916033) 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, 140407 + ... + 142217.

It is an arithmetic number, because the mean of its divisors is an integer number (7420140).

Almost surely, 2255916032 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 255916032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (356166720).

255916032 is an abundant number, since it is smaller than the sum of its proper divisors (456417408).

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

255916032 is a wasteful number, since it uses less digits than its factorization.

255916032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1859 (or 1839 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 33.

The square root of 255916032 is about 15997.3757847967. The cubic root of 255916032 is about 634.8909908564.

The spelling of 255916032 in words is "two hundred fifty-five million, nine hundred sixteen thousand, thirty-two".

Divisors: 1 2 3 4 6 8 12 16 23 24 32 46 48 64 69 92 96 128 138 184 192 256 276 368 384 512 552 736 768 1024 1104 1472 1536 1811 2048 2208 2944 3072 3622 4416 5433 5888 6144 7244 8832 10866 11776 14488 17664 21732 23552 28976 35328 41653 43464 47104 57952 70656 83306 86928 115904 124959 141312 166612 173856 231808 249918 333224 347712 463616 499836 666448 695424 927232 999672 1332896 1390848 1854464 1999344 2665792 2781696 3708928 3998688 5331584 5563392 7997376 10663168 11126784 15994752 21326336 31989504 42652672 63979008 85305344 127958016 255916032