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31020001010 = 2529947103583
BaseRepresentation
bin11100111000111011…
…111010011011110010
32222001211121022201022
4130320323322123302
51002012110013020
622130030135442
72145463441505
oct347073723362
988054538638
1031020001010
1112178a88979
126018651582
132c047b5cab
141703ac113c
15c1845b625
hex738efa6f2

31020001010 has 16 divisors (see below), whose sum is σ = 55838405376. Its totient is φ = 12407466288.

The previous prime is 31020001009. The next prime is 31020001043. The reversal of 31020001010 is 1010002013.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 247679 + ... + 351261.

It is an arithmetic number, because the mean of its divisors is an integer number (3489900336).

Almost surely, 231020001010 is an apocalyptic number.

31020001010 is a deficient number, since it is larger than the sum of its proper divisors (24818404366).

31020001010 is a wasteful number, since it uses less digits than its factorization.

31020001010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133537.

The product of its (nonzero) digits is 6, while the sum is 8.

Adding to 31020001010 its reverse (1010002013), we get a palindrome (32030003023).

The spelling of 31020001010 in words is "thirty-one billion, twenty million, one thousand, ten".

Divisors: 1 2 5 10 29947 59894 103583 149735 207166 299470 517915 1035830 3102000101 6204000202 15510000505 31020001010