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254130664 = 23103308411
BaseRepresentation
bin11110010010110…
…11100111101000
3122201012011201211
433021123213220
51010024140124
641114522504
76204034504
oct1711334750
9581164654
10254130664
111204a5147
1271136434
134085a898
1425a73304
151749ce94
hexf25b9e8

254130664 has 16 divisors (see below), whose sum is σ = 481122720. Its totient is φ = 125831280.

The previous prime is 254130649. The next prime is 254130673. The reversal of 254130664 is 466031452.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 153382 + ... + 155029.

It is an arithmetic number, because the mean of its divisors is an integer number (30070170).

Almost surely, 2254130664 is an apocalyptic number.

It is an amenable number.

254130664 is a deficient number, since it is larger than the sum of its proper divisors (226992056).

254130664 is a wasteful number, since it uses less digits than its factorization.

254130664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308520 (or 308516 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 254130664 is about 15941.4762177158. The cubic root of 254130664 is about 633.4111301170.

The spelling of 254130664 in words is "two hundred fifty-four million, one hundred thirty thousand, six hundred sixty-four".

Divisors: 1 2 4 8 103 206 412 824 308411 616822 1233644 2467288 31766333 63532666 127065332 254130664