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253870113 = 37232232357
BaseRepresentation
bin11110010000111…
…00000000100001
3122200200221022210
433020130000201
51004442320423
641105152333
76201601050
oct1710340041
9580627283
10253870113
11120337412
127102b6a9
1340799103
1425a06397
151744ab93
hexf21c021

253870113 has 32 divisors (see below), whose sum is σ = 405651456. Its totient is φ = 138080448.

The previous prime is 253870103. The next prime is 253870117. The reversal of 253870113 is 311078352.

It is a de Polignac number, because none of the positive numbers 2k-253870113 is a prime.

It is not an unprimeable number, because it can be changed into a prime (253870117) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 106531 + ... + 108887.

It is an arithmetic number, because the mean of its divisors is an integer number (12676608).

Almost surely, 2253870113 is an apocalyptic number.

253870113 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

253870113 is a deficient number, since it is larger than the sum of its proper divisors (151781343).

253870113 is a wasteful number, since it uses less digits than its factorization.

253870113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2613.

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 253870113 is about 15933.3020118242. The cubic root of 253870113 is about 633.1945849027.

The spelling of 253870113 in words is "two hundred fifty-three million, eight hundred seventy thousand, one hundred thirteen".

Divisors: 1 3 7 21 23 69 161 223 483 669 1561 2357 4683 5129 7071 15387 16499 35903 49497 54211 107709 162633 379477 525611 1138431 1576833 3679277 11037831 12089053 36267159 84623371 253870113