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131102000 = 245365551
BaseRepresentation
bin1111101000001…
…11010100110000
3100010200200010122
413310013110300
5232030231000
621001545412
73151230401
oct764072460
9303620118
10131102000
1168004967
1237aa5268
1321213263
14135a99a8
15b79a085
hex7d07530

131102000 has 40 divisors (see below), whose sum is σ = 317009472. Its totient is φ = 52440000.

The previous prime is 131101991. The next prime is 131102003. The reversal of 131102000 is 201131.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (8).

It is not an unprimeable number, because it can be changed into a prime (131102003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30776 + ... + 34775.

Almost surely, 2131102000 is an apocalyptic number.

131102000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131102000 is an abundant number, since it is smaller than the sum of its proper divisors (185907472).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131102000 is an equidigital number, since it uses as much as digits as its factorization.

131102000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65574 (or 65558 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 8.

The square root of 131102000 is about 11449.9781659180. The cubic root of 131102000 is about 508.0070885819.

Adding to 131102000 its reverse (201131), we get a palindrome (131303131).

The spelling of 131102000 in words is "one hundred thirty-one million, one hundred two thousand".

Divisors: 1 2 4 5 8 10 16 20 25 40 50 80 100 125 200 250 400 500 1000 2000 65551 131102 262204 327755 524408 655510 1048816 1311020 1638775 2622040 3277550 5244080 6555100 8193875 13110200 16387750 26220400 32775500 65551000 131102000