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10311032212 = 2213198289081
BaseRepresentation
bin10011001101001010…
…11101110110010100
3222121121000201002221
421212211131312110
5132104111012322
64423053112124
7513342220255
oct114645356624
928547021087
1010311032212
114411344128
121bb9188644
13c8427b8c0
146db5a8b2c
1540534a9c7
hex26695dd94

10311032212 has 12 divisors (see below), whose sum is σ = 19432330036. Its totient is φ = 4758937920.

The previous prime is 10311032203. The next prime is 10311032261. The reversal of 10311032212 is 21223011301.

It can be written as a sum of positive squares in 2 ways, for example, as 1009587076 + 9301445136 = 31774^2 + 96444^2 .

It is a super-2 number, since 2×103110322122 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 99144489 + ... + 99144592.

Almost surely, 210311032212 is an apocalyptic number.

It is an amenable number.

10311032212 is a deficient number, since it is larger than the sum of its proper divisors (9121297824).

10311032212 is a wasteful number, since it uses less digits than its factorization.

10311032212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198289098 (or 198289096 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 10311032212 its reverse (21223011301), we get a palindrome (31534043513).

The spelling of 10311032212 in words is "ten billion, three hundred eleven million, thirty-two thousand, two hundred twelve".

Divisors: 1 2 4 13 26 52 198289081 396578162 793156324 2577758053 5155516106 10311032212