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70713213 = 361386411
BaseRepresentation
bin1000011011011…
…11111101111101
311221001121021220
410031233331331
5121100310323
611003343553
71516023654
oct415577575
9157047256
1070713213
1136a0897a
121b821bb9
131185b34c
14956a19b
15631c0e3
hex436ff7d

70713213 has 8 divisors (see below), whose sum is σ = 95830176. Its totient is φ = 46369200.

The previous prime is 70713191. The next prime is 70713221. The reversal of 70713213 is 31231707.

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

It is not a de Polignac number, because 70713213 - 216 = 70647677 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70713283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 193023 + ... + 193388.

It is an arithmetic number, because the mean of its divisors is an integer number (11978772).

Almost surely, 270713213 is an apocalyptic number.

It is an amenable number.

70713213 is a deficient number, since it is larger than the sum of its proper divisors (25116963).

70713213 is a wasteful number, since it uses less digits than its factorization.

70713213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 386475.

The product of its (nonzero) digits is 882, while the sum is 24.

The square root of 70713213 is about 8409.1148761329. The cubic root of 70713213 is about 413.5234954996.

The spelling of 70713213 in words is "seventy million, seven hundred thirteen thousand, two hundred thirteen".

Divisors: 1 3 61 183 386411 1159233 23571071 70713213