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34970231 = 288712113
BaseRepresentation
bin1000010101100…
…1101001110111
32102210200010202
42011121221313
532423021411
63245311115
7603146012
oct205315167
972720122
1034970231
111881571a
12b86549b
13732535a
144904379
15310b83b
hex2159a77

34970231 has 4 divisors (see below), whose sum is σ = 34985232. Its totient is φ = 34955232.

The previous prime is 34970213. The next prime is 34970237. The reversal of 34970231 is 13207943.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13207943 = 71886849.

It is a cyclic number.

It is not a de Polignac number, because 34970231 - 26 = 34970167 is a prime.

It is a super-2 number, since 2×349702312 = 2445834112386722, 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 = 34970194 and 34970203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34970237) 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, 3170 + ... + 8943.

It is an arithmetic number, because the mean of its divisors is an integer number (8746308).

Almost surely, 234970231 is an apocalyptic number.

34970231 is a deficient number, since it is larger than the sum of its proper divisors (15001).

34970231 is a wasteful number, since it uses less digits than its factorization.

34970231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15000.

The product of its (nonzero) digits is 4536, while the sum is 29.

The square root of 34970231 is about 5913.5633081924. The cubic root of 34970231 is about 327.0138653106.

The spelling of 34970231 in words is "thirty-four million, nine hundred seventy thousand, two hundred thirty-one".

Divisors: 1 2887 12113 34970231