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131542470163 = 13291663209813
BaseRepresentation
bin111101010000010001…
…0101100111000010011
3110120112102100211220101
41322200202230320103
54123344333021123
6140232455353231
712334513355626
oct1724042547023
9416472324811
10131542470163
1150872327865
12215b1382817
13c534616a80
14651c2a5dbd
15364d49baad
hex1ea08ace13

131542470163 has 16 divisors (see below), whose sum is σ = 146634808320. Its totient is φ = 117165734784.

The previous prime is 131542470139. The next prime is 131542470173. The reversal of 131542470163 is 361074245131.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 131542470163 - 29 = 131542469651 is a prime.

It is not an unprimeable number, because it can be changed into a prime (131542470173) 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, 522045 + ... + 731857.

It is an arithmetic number, because the mean of its divisors is an integer number (9164675520).

Almost surely, 2131542470163 is an apocalyptic number.

131542470163 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

131542470163 is a deficient number, since it is larger than the sum of its proper divisors (15092338157).

131542470163 is a wasteful number, since it uses less digits than its factorization.

131542470163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211518.

The product of its (nonzero) digits is 60480, while the sum is 37.

The spelling of 131542470163 in words is "one hundred thirty-one billion, five hundred forty-two million, four hundred seventy thousand, one hundred sixty-three".

Divisors: 1 13 29 377 1663 21619 48227 209813 626951 2727569 6084577 79099501 348919019 4535947247 10118651551 131542470163