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10131212144 = 247323813643
BaseRepresentation
bin10010110111101111…
…00000011101110000
3222011001122220100102
421123313200131300
5131222042242034
64353151011532
7506026611434
oct113367403560
928131586312
1010131212144
1143298946a9
121b68b09ba8
13c55c3b8b1
146c175a9c4
153e467a97e
hex25bde0770

10131212144 has 40 divisors (see below), whose sum is σ = 19911938352. Its totient is φ = 4992744960.

The previous prime is 10131212141. The next prime is 10131212153. The reversal of 10131212144 is 44121213101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10131212141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2779187 + ... + 2782829.

Almost surely, 210131212144 is an apocalyptic number.

It is an amenable number.

10131212144 is a deficient number, since it is larger than the sum of its proper divisors (9780726208).

10131212144 is a wasteful number, since it uses less digits than its factorization.

10131212144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6105 (or 6099 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 10131212144 its reverse (44121213101), we get a palindrome (54252425245).

The spelling of 10131212144 in words is "ten billion, one hundred thirty-one million, two hundred twelve thousand, one hundred forty-four".

Divisors: 1 2 4 8 16 73 146 292 584 1168 2381 3643 4762 7286 9524 14572 19048 29144 38096 58288 173813 265939 347626 531878 695252 1063756 1390504 2127512 2781008 4255024 8673983 17347966 34695932 69391864 138783728 633200759 1266401518 2532803036 5065606072 10131212144