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100131201 = 3359239263
BaseRepresentation
bin1011111011111…
…10000110000001
320222102012012000
411331332012001
5201113144301
613534054213
72324046462
oct575760601
9228365160
10100131201
1151581065
122964a369
131798b441
14d426d69
158bcd786
hex5f7e181

100131201 has 32 divisors (see below), whose sum is σ = 152064000. Its totient is φ = 65099664.

The previous prime is 100131193. The next prime is 100131211. The reversal of 100131201 is 102131001.

It is not a de Polignac number, because 100131201 - 23 = 100131193 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (100131211) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 380596 + ... + 380858.

It is an arithmetic number, because the mean of its divisors is an integer number (4752000).

Almost surely, 2100131201 is an apocalyptic number.

It is an amenable number.

100131201 is a deficient number, since it is larger than the sum of its proper divisors (51932799).

100131201 is a wasteful number, since it uses less digits than its factorization.

100131201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 570 (or 564 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 9.

The square root of 100131201 is about 10006.5578996976. The cubic root of 100131201 is about 464.3617883482.

Adding to 100131201 its reverse (102131001), we get a palindrome (202262202).

The spelling of 100131201 in words is "one hundred million, one hundred thirty-one thousand, two hundred one".

Divisors: 1 3 9 27 59 177 239 263 531 717 789 1593 2151 2367 6453 7101 14101 15517 42303 46551 62857 126909 139653 188571 380727 418959 565713 1697139 3708563 11125689 33377067 100131201