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253245274 = 2413088357
BaseRepresentation
bin11110001100000…
…11011101011010
3122122112012012121
433012003131122
51004312322044
641043531454
76163356262
oct1706033532
9578465177
10253245274
1111aa4aa17
1270989b8a
134060a899
14258c27a2
1517375984
hexf18375a

253245274 has 8 divisors (see below), whose sum is σ = 389133108. Its totient is φ = 123534240.

The previous prime is 253245269. The next prime is 253245331. The reversal of 253245274 is 472542352.

It can be written as a sum of positive squares in 2 ways, for example, as 184769649 + 68475625 = 13593^2 + 8275^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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, 1544097 + ... + 1544260.

Almost surely, 2253245274 is an apocalyptic number.

253245274 is a deficient number, since it is larger than the sum of its proper divisors (135887834).

253245274 is a wasteful number, since it uses less digits than its factorization.

253245274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3088400.

The product of its digits is 67200, while the sum is 34.

The square root of 253245274 is about 15913.6819749548. The cubic root of 253245274 is about 632.6746737492.

The spelling of 253245274 in words is "two hundred fifty-three million, two hundred forty-five thousand, two hundred seventy-four".

Divisors: 1 2 41 82 3088357 6176714 126622637 253245274