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34972431 = 3137911351
BaseRepresentation
bin1000010101101…
…0001100001111
32102210210011020
42011122030033
532423104211
63245325223
7603155304
oct205321417
972723136
1034972431
111881733a
12b866813
137326360
1449050ab
15310c306
hex215a30f

34972431 has 16 divisors (see below), whose sum is σ = 50856960. Its totient is φ = 21247200.

The previous prime is 34972423. The next prime is 34972453. The reversal of 34972431 is 13427943.

It is not a de Polignac number, because 34972431 - 23 = 34972423 is a prime.

It is a super-2 number, since 2×349724312 = 2446141860099522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 34972392 and 34972401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34972411) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2595 + ... + 8756.

It is an arithmetic number, because the mean of its divisors is an integer number (3178560).

Almost surely, 234972431 is an apocalyptic number.

34972431 is a deficient number, since it is larger than the sum of its proper divisors (15884529).

34972431 is a wasteful number, since it uses less digits than its factorization.

34972431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11446.

The product of its digits is 18144, while the sum is 33.

The square root of 34972431 is about 5913.7493183259. The cubic root of 34972431 is about 327.0207227186.

The spelling of 34972431 in words is "thirty-four million, nine hundred seventy-two thousand, four hundred thirty-one".

Divisors: 1 3 13 39 79 237 1027 3081 11351 34053 147563 442689 896729 2690187 11657477 34972431