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30147115 = 561971019
BaseRepresentation
bin111001100000…
…0001000101011
32002201122001211
41303000020223
530204201430
62554053551
7514150315
oct163001053
962648054
1030147115
1116020a79
12a11a2b7
136326c3b
14400a7b5
1529a772a
hex1cc022b

30147115 has 16 divisors (see below), whose sum is σ = 37185120. Its totient is φ = 23454720.

The previous prime is 30147109. The next prime is 30147121. The reversal of 30147115 is 51174103.

It is an interprime number because it is at equal distance from previous prime (30147109) and next prime (30147121).

It is not a de Polignac number, because 30147115 - 25 = 30147083 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29076 + ... + 30094.

It is an arithmetic number, because the mean of its divisors is an integer number (2324070).

Almost surely, 230147115 is an apocalyptic number.

30147115 is a deficient number, since it is larger than the sum of its proper divisors (7038005).

30147115 is a wasteful number, since it uses less digits than its factorization.

30147115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1182.

The product of its (nonzero) digits is 420, while the sum is 22.

The square root of 30147115 is about 5490.6388517184. The cubic root of 30147115 is about 311.2303342897.

The spelling of 30147115 in words is "thirty million, one hundred forty-seven thousand, one hundred fifteen".

Divisors: 1 5 61 97 305 485 1019 5095 5917 29585 62159 98843 310795 494215 6029423 30147115