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255463641 = 32171669697
BaseRepresentation
bin11110011101000…
…01000011011001
3122210200220020100
433032201003121
51010344314031
641203250013
76221255646
oct1716410331
9583626210
10255463641
11121225684
1271679909
1340c06524
1425cdcdcd
1517662de6
hexf3a10d9

255463641 has 12 divisors (see below), whose sum is σ = 390709332. Its totient is φ = 160290816.

The previous prime is 255463601. The next prime is 255463673. The reversal of 255463641 is 146364552.

255463641 is a `hidden beast` number, since 2 + 5 + 5 + 4 + 6 + 3 + 641 = 666.

255463641 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 218921616 + 36542025 = 14796^2 + 6045^2 .

It is not a de Polignac number, because 255463641 - 215 = 255430873 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 255463596 and 255463605.

It is not an unprimeable number, because it can be changed into a prime (255463601) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 834696 + ... + 835001.

It is an arithmetic number, because the mean of its divisors is an integer number (32559111).

Almost surely, 2255463641 is an apocalyptic number.

It is an amenable number.

255463641 is a deficient number, since it is larger than the sum of its proper divisors (135245691).

255463641 is a wasteful number, since it uses less digits than its factorization.

255463641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1669720 (or 1669717 counting only the distinct ones).

The product of its digits is 86400, while the sum is 36.

The square root of 255463641 is about 15983.2299927142. The cubic root of 255463641 is about 634.5166644592.

The spelling of 255463641 in words is "two hundred fifty-five million, four hundred sixty-three thousand, six hundred forty-one".

Divisors: 1 3 9 17 51 153 1669697 5009091 15027273 28384849 85154547 255463641