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103136631 = 31310492521
BaseRepresentation
bin1100010010110…
…11110101110111
321012001212212020
412021123311313
5202400333011
614122324223
72361434613
oct611336567
9235055766
10103136631
1153244094
122a659673
13184a13c0
14d9aa343
1590c4006
hex625bd77

103136631 has 16 divisors (see below), whose sum is σ = 148293600. Its totient is φ = 63383040.

The previous prime is 103136611. The next prime is 103136701. The reversal of 103136631 is 136631301.

It is not a de Polignac number, because 103136631 - 211 = 103134583 is a prime.

It is a super-2 number, since 2×1031366312 = 21274329308060322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103136611) 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, 39651 + ... + 42171.

It is an arithmetic number, because the mean of its divisors is an integer number (9268350).

Almost surely, 2103136631 is an apocalyptic number.

103136631 is a deficient number, since it is larger than the sum of its proper divisors (45156969).

103136631 is a wasteful number, since it uses less digits than its factorization.

103136631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3586.

The product of its (nonzero) digits is 972, while the sum is 24.

The square root of 103136631 is about 10155.6206605013. The cubic root of 103136631 is about 468.9619932134.

Adding to 103136631 its reverse (136631301), we get a palindrome (239767932).

The spelling of 103136631 in words is "one hundred three million, one hundred thirty-six thousand, six hundred thirty-one".

Divisors: 1 3 13 39 1049 2521 3147 7563 13637 32773 40911 98319 2644529 7933587 34378877 103136631