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32031312212 = 2217471048709
BaseRepresentation
bin11101110101001101…
…110000100101010100
310001200022120020212202
4131311031300211110
51011100003442322
622414234104032
72212523442614
oct356515604524
9101608506782
1032031312212
1112647927a59
12625b27b018
1330361837a3
14179c134a44
15c77124292
hex775370954

32031312212 has 12 divisors (see below), whose sum is σ = 59352137460. Its totient is φ = 15073558656.

The previous prime is 32031312211. The next prime is 32031312221. The reversal of 32031312212 is 21221313023.

It can be written as a sum of positive squares in 2 ways, for example, as 29348486596 + 2682825616 = 171314^2 + 51796^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32031312211) 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, 235524287 + ... + 235524422.

It is an arithmetic number, because the mean of its divisors is an integer number (4946011455).

Almost surely, 232031312212 is an apocalyptic number.

It is an amenable number.

32031312212 is a deficient number, since it is larger than the sum of its proper divisors (27320825248).

32031312212 is a wasteful number, since it uses less digits than its factorization.

32031312212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 471048730 (or 471048728 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 32031312212 its reverse (21221313023), we get a palindrome (53252625235).

The spelling of 32031312212 in words is "thirty-two billion, thirty-one million, three hundred twelve thousand, two hundred twelve".

Divisors: 1 2 4 17 34 68 471048709 942097418 1884194836 8007828053 16015656106 32031312212