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10312031212 = 227616037489
BaseRepresentation
bin10011001101010010…
…10001101111101100
3222121122220110110221
421212221101233230
5132104334444322
64423130341124
7513353550640
oct114651215754
928548813427
1010312031212
11441196674a
121bb958a7a4
13c8453b522
146db788c20
154054969c7
hex266a51bec

10312031212 has 24 divisors (see below), whose sum is σ = 20962165280. Its totient is φ = 4346991360.

The previous prime is 10312031179. The next prime is 10312031293. The reversal of 10312031212 is 21213021301.

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, 3017037 + ... + 3020452.

Almost surely, 210312031212 is an apocalyptic number.

It is an amenable number.

10312031212 is an abundant number, since it is smaller than the sum of its proper divisors (10650134068).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10312031212 is a wasteful number, since it uses less digits than its factorization.

10312031212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6037561 (or 6037559 counting only the distinct ones).

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

Adding to 10312031212 its reverse (21213021301), we get a palindrome (31525052513).

The spelling of 10312031212 in words is "ten billion, three hundred twelve million, thirty-one thousand, two hundred twelve".

Divisors: 1 2 4 7 14 28 61 122 244 427 854 1708 6037489 12074978 24149956 42262423 84524846 169049692 368286829 736573658 1473147316 2578007803 5156015606 10312031212