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253947134 = 2742592
BaseRepresentation
bin11110010001011…
…10110011111110
3122200211211222102
433020232303332
51010002302014
641110545102
76202341440
oct1710566376
9580754872
10253947134
1112038a271
1271068192
13407c519c
1425a26490
15174638de
hexf22ecfe

253947134 has 12 divisors (see below), whose sum is σ = 435440184. Its totient is φ = 108808932.

The previous prime is 253947091. The next prime is 253947137. The reversal of 253947134 is 431749352.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253947137) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 57497 + ... + 61755.

It is an arithmetic number, because the mean of its divisors is an integer number (36286682).

Almost surely, 2253947134 is an apocalyptic number.

253947134 is a deficient number, since it is larger than the sum of its proper divisors (181493050).

253947134 is an frugal number, since it uses more digits than its factorization.

253947134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8527 (or 4268 counting only the distinct ones).

The product of its digits is 90720, while the sum is 38.

The square root of 253947134 is about 15935.7188102702. The cubic root of 253947134 is about 633.2586128531.

The spelling of 253947134 in words is "two hundred fifty-three million, nine hundred forty-seven thousand, one hundred thirty-four".

Divisors: 1 2 7 14 4259 8518 29813 59626 18139081 36278162 126973567 253947134