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131029116 = 22310919093
BaseRepresentation
bin1111100111101…
…01100001111100
3100010112222011020
413303311201330
5232020412431
621000224140
73150505041
oct763654174
9303488136
10131029116
1167a65129
1237a6b050
13211b902a
141358b1c8
15b783696
hex7cf587c

131029116 has 12 divisors (see below), whose sum is σ = 305734632. Its totient is φ = 43676368.

The previous prime is 131029103. The next prime is 131029123. The reversal of 131029116 is 611920131.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 5459535 + ... + 5459558.

It is an arithmetic number, because the mean of its divisors is an integer number (25477886).

Almost surely, 2131029116 is an apocalyptic number.

It is an amenable number.

131029116 is an abundant number, since it is smaller than the sum of its proper divisors (174705516).

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

131029116 is a wasteful number, since it uses less digits than its factorization.

131029116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10919100 (or 10919098 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 24.

The square root of 131029116 is about 11446.7950099580. The cubic root of 131029116 is about 507.9129317371.

Adding to 131029116 its reverse (611920131), we get a palindrome (742949247).

The spelling of 131029116 in words is "one hundred thirty-one million, twenty-nine thousand, one hundred sixteen".

Divisors: 1 2 3 4 6 12 10919093 21838186 32757279 43676372 65514558 131029116