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31530030622 = 2312383213407
BaseRepresentation
bin11101010111010101…
…100001011000011110
310000101101022111210221
4131113111201120132
51004033141434442
622252405551554
72164225560346
oct352725413036
9100341274727
1031530030622
111240a975752
12613b4155ba
132c8637026c
141751727d26
15c48106467
hex75756161e

31530030622 has 16 divisors (see below), whose sum is σ = 48841408512. Its totient is φ = 15249992760.

The previous prime is 31530030619. The next prime is 31530030629. The reversal of 31530030622 is 22603003513.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31530030629) 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, 41043 + ... + 254449.

It is an arithmetic number, because the mean of its divisors is an integer number (3052588032).

Almost surely, 231530030622 is an apocalyptic number.

31530030622 is a deficient number, since it is larger than the sum of its proper divisors (17311377890).

31530030622 is a wasteful number, since it uses less digits than its factorization.

31530030622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215823.

The product of its (nonzero) digits is 3240, while the sum is 25.

The spelling of 31530030622 in words is "thirty-one billion, five hundred thirty million, thirty thousand, six hundred twenty-two".

Divisors: 1 2 31 62 2383 4766 73873 147746 213407 426814 6615617 13231234 508548881 1017097762 15765015311 31530030622