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1005013631631 = 31993748122469
BaseRepresentation
bin11101001111111110111…
…10110000001010001111
310120002010010110022010110
432213333132300022033
5112431231442203011
62045410310011103
7132416113626612
oct16477736601217
93502103408113
101005013631631
11358250aa3609
12142941046a93
1373a06bbac89
1436900256179
151b2219b1ba6
hexe9ff7b028f

1005013631631 has 16 divisors (see below), whose sum is σ = 1340929427040. Its totient is φ = 669553589760.

The previous prime is 1005013631599. The next prime is 1005013631647. The reversal of 1005013631631 is 1361363105001.

It is not a de Polignac number, because 1005013631631 - 25 = 1005013631599 is a prime.

It is a super-2 number, since 2×10050136316312 (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1005013631131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44717665 + ... + 44740133.

It is an arithmetic number, because the mean of its divisors is an integer number (83808089190).

Almost surely, 21005013631631 is an apocalyptic number.

1005013631631 is a deficient number, since it is larger than the sum of its proper divisors (335915795409).

1005013631631 is a wasteful number, since it uses less digits than its factorization.

1005013631631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31946.

The product of its (nonzero) digits is 4860, while the sum is 30.

Adding to 1005013631631 its reverse (1361363105001), we get a palindrome (2366376736632).

The spelling of 1005013631631 in words is "one trillion, five billion, thirteen million, six hundred thirty-one thousand, six hundred thirty-one".

Divisors: 1 3 1993 5979 7481 22443 22469 67407 14909633 44728899 44780717 134342151 168090589 504271767 335004543877 1005013631631