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34620631 = 145323827
BaseRepresentation
bin1000010000010…
…0010011010111
32102010220120121
42010010103113
532330330011
63234012411
7600161533
oct204042327
972126517
1034620631
11185a6aa1
12b717107
1372321a6
144852bc3
15308ce71
hex21044d7

34620631 has 4 divisors (see below), whose sum is σ = 34645912. Its totient is φ = 34595352.

The previous prime is 34620629. The next prime is 34620637. The reversal of 34620631 is 13602643.

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

It is a cyclic number.

It is not a de Polignac number, because 34620631 - 21 = 34620629 is a prime.

It is a super-2 number, since 2×346206312 = 2397176181676322, 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 = 34620596 and 34620605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34620637) 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, 10461 + ... + 13366.

It is an arithmetic number, because the mean of its divisors is an integer number (8661478).

Almost surely, 234620631 is an apocalyptic number.

34620631 is a deficient number, since it is larger than the sum of its proper divisors (25281).

34620631 is a wasteful number, since it uses less digits than its factorization.

34620631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25280.

The product of its (nonzero) digits is 2592, while the sum is 25.

The square root of 34620631 is about 5883.9298942119. The cubic root of 34620631 is about 325.9204863349.

The spelling of 34620631 in words is "thirty-four million, six hundred twenty thousand, six hundred thirty-one".

Divisors: 1 1453 23827 34620631