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115153421 = 6110311831
BaseRepresentation
bin1101101110100…
…01101000001101
322000200101210112
412313101220031
5213434402141
615232045405
72565534155
oct667215015
9260611715
10115153421
115a001519
1232693865
131ab1ac26
1411417765
15a1997eb
hex6dd1a0d

115153421 has 8 divisors (see below), whose sum is σ = 117218688. Its totient is φ = 113094000.

The previous prime is 115153411. The next prime is 115153447. The reversal of 115153421 is 124351511.

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

It is a de Polignac number, because none of the positive numbers 2k-115153421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115153411) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61976 + ... + 63806.

It is an arithmetic number, because the mean of its divisors is an integer number (14652336).

Almost surely, 2115153421 is an apocalyptic number.

It is an amenable number.

115153421 is a deficient number, since it is larger than the sum of its proper divisors (2065267).

115153421 is a wasteful number, since it uses less digits than its factorization.

115153421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2923.

The product of its digits is 600, while the sum is 23.

The square root of 115153421 is about 10730.9562015694. The cubic root of 115153421 is about 486.5105714333.

The spelling of 115153421 in words is "one hundred fifteen million, one hundred fifty-three thousand, four hundred twenty-one".

Divisors: 1 61 1031 1831 62891 111691 1887761 115153421