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70058231 = 103680177
BaseRepresentation
bin1000010110100…
…00000011110111
311212211022211022
410023100003313
5120413330411
610541331355
71510325255
oct413200367
9155738738
1070058231
1136600871
121b566b5b
131168c199
1494395d5
15623cedb
hex42d00f7

70058231 has 4 divisors (see below), whose sum is σ = 70738512. Its totient is φ = 69377952.

The previous prime is 70058221. The next prime is 70058239. The reversal of 70058231 is 13285007.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-70058231 is a prime.

It is a super-2 number, since 2×700582312 = 9816311461698722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 70058231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70058239) 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, 339986 + ... + 340191.

It is an arithmetic number, because the mean of its divisors is an integer number (17684628).

Almost surely, 270058231 is an apocalyptic number.

70058231 is a deficient number, since it is larger than the sum of its proper divisors (680281).

70058231 is a wasteful number, since it uses less digits than its factorization.

70058231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 680280.

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 70058231 is about 8370.0795097777. The cubic root of 70058231 is about 412.2427776233.

The spelling of 70058231 in words is "seventy million, fifty-eight thousand, two hundred thirty-one".

Divisors: 1 103 680177 70058231