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101470031 = 137805387
BaseRepresentation
bin1100000110001…
…00111101001111
321001221012201022
412003010331033
5201434020111
614022504355
72341323665
oct603047517
9231835638
10101470031
1152305a33
1229b950bb
1318039950
14d694c35
158d952db
hex60c4f4f

101470031 has 4 divisors (see below), whose sum is σ = 109275432. Its totient is φ = 93664632.

The previous prime is 101470027. The next prime is 101470063. The reversal of 101470031 is 130074101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 130074101 = 731781837.

It is a cyclic number.

It is not a de Polignac number, because 101470031 - 22 = 101470027 is a prime.

It is a super-2 number, since 2×1014700312 = 20592334382281922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101469991 and 101470009.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101470081) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3902681 + ... + 3902706.

It is an arithmetic number, because the mean of its divisors is an integer number (27318858).

Almost surely, 2101470031 is an apocalyptic number.

101470031 is a deficient number, since it is larger than the sum of its proper divisors (7805401).

101470031 is an equidigital number, since it uses as much as digits as its factorization.

101470031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7805400.

The product of its (nonzero) digits is 84, while the sum is 17.

The square root of 101470031 is about 10073.2333935038. The cubic root of 101470031 is about 466.4222550643.

The spelling of 101470031 in words is "one hundred one million, four hundred seventy thousand, thirty-one".

Divisors: 1 13 7805387 101470031