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10155215631 = 311319926897
BaseRepresentation
bin10010111010100110…
…00100101100001111
3222012201211101221110
421131103010230033
5131244213400011
64355405303103
7506440623441
oct113523045417
928181741843
1010155215631
1143413998a0
121b74b64a93
13c5abc4342
146c4a08491
153e681cba6
hex25d4c4b0f

10155215631 has 16 divisors (see below), whose sum is σ = 15247715328. Its totient is φ = 5956137600.

The previous prime is 10155215617. The next prime is 10155215647. The reversal of 10155215631 is 13651255101.

10155215631 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 10155215631 - 210 = 10155214607 is a prime.

It is a super-2 number, since 2×101552156312 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10155215671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4962426 + ... + 4964471.

It is an arithmetic number, because the mean of its divisors is an integer number (952982208).

Almost surely, 210155215631 is an apocalyptic number.

10155215631 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

10155215631 is a deficient number, since it is larger than the sum of its proper divisors (5092499697).

10155215631 is a wasteful number, since it uses less digits than its factorization.

10155215631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9926942.

The product of its (nonzero) digits is 4500, while the sum is 30.

The spelling of 10155215631 in words is "ten billion, one hundred fifty-five million, two hundred fifteen thousand, six hundred thirty-one".

Divisors: 1 3 11 31 33 93 341 1023 9926897 29780691 109195867 307733807 327587601 923201421 3385071877 10155215631