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255281430 = 23512767003
BaseRepresentation
bin11110011011101…
…00100100010110
3122210100122021210
433031310210112
51010323001210
641155322250
76216566505
oct1715644426
9583318253
10255281430
11121110798
12715b0386
1340b71601
1425c9283c
1517628e20
hexf374916

255281430 has 32 divisors (see below), whose sum is σ = 617508864. Its totient is φ = 67538016.

The previous prime is 255281413. The next prime is 255281447. The reversal of 255281430 is 34182552.

It is an interprime number because it is at equal distance from previous prime (255281413) and next prime (255281447).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

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, 29692 + ... + 37311.

It is an arithmetic number, because the mean of its divisors is an integer number (19297152).

Almost surely, 2255281430 is an apocalyptic number.

255281430 is an abundant number, since it is smaller than the sum of its proper divisors (362227434).

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

255281430 is a wasteful number, since it uses less digits than its factorization.

255281430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67140.

The product of its (nonzero) digits is 9600, while the sum is 30.

The square root of 255281430 is about 15977.5289078130. The cubic root of 255281430 is about 634.3657709513.

The spelling of 255281430 in words is "two hundred fifty-five million, two hundred eighty-one thousand, four hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 127 254 381 635 762 1270 1905 3810 67003 134006 201009 335015 402018 670030 1005045 2010090 8509381 17018762 25528143 42546905 51056286 85093810 127640715 255281430