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131102144 = 262048471
BaseRepresentation
bin1111101000001…
…11010111000000
3100010200200022222
413310013113000
5232030232034
621001550212
73151230665
oct764072700
9303620288
10131102144
1168004a88
1237aa5368
1321213344
14135a9a6c
15b79a12e
hex7d075c0

131102144 has 14 divisors (see below), whose sum is σ = 260155944. Its totient is φ = 65551040.

The previous prime is 131102089. The next prime is 131102177. The reversal of 131102144 is 441201131.

It is a happy number.

It is a super-2 number, since 2×1311021442 = 34375544322793472, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 1024172 + ... + 1024299.

Almost surely, 2131102144 is an apocalyptic number.

It is an amenable number.

131102144 is a deficient number, since it is larger than the sum of its proper divisors (129053800).

131102144 is an equidigital number, since it uses as much as digits as its factorization.

131102144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2048483 (or 2048473 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 131102144 is about 11449.9844541379. The cubic root of 131102144 is about 508.0072745770.

Adding to 131102144 its reverse (441201131), we get a palindrome (572303275).

The spelling of 131102144 in words is "one hundred thirty-one million, one hundred two thousand, one hundred forty-four".

Divisors: 1 2 4 8 16 32 64 2048471 4096942 8193884 16387768 32775536 65551072 131102144