Search a number
-
+
131614021 = 7118771949
BaseRepresentation
bin1111101100001…
…00010101000101
3100011122200111101
413312010111011
5232143122041
621020540101
73155462230
oct766042505
9304580441
10131614021
1168324620
12380b1631
1321362326
14136a0417
15b84bb31
hex7d84545

131614021 has 16 divisors (see below), whose sum is σ = 164361600. Its totient is φ = 102386880.

The previous prime is 131614019. The next prime is 131614031. The reversal of 131614021 is 120416131.

It is a cyclic number.

It is not a de Polignac number, because 131614021 - 21 = 131614019 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 131614021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131614031) 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 15 ways as a sum of consecutive naturals, for example, 66555 + ... + 68503.

It is an arithmetic number, because the mean of its divisors is an integer number (10272600).

Almost surely, 2131614021 is an apocalyptic number.

131614021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

131614021 is a deficient number, since it is larger than the sum of its proper divisors (32747579).

131614021 is a wasteful number, since it uses less digits than its factorization.

131614021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2844.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 131614021 is about 11472.3154158173. The cubic root of 131614021 is about 508.6675728070.

The spelling of 131614021 in words is "one hundred thirty-one million, six hundred fourteen thousand, twenty-one".

Divisors: 1 7 11 77 877 1949 6139 9647 13643 21439 67529 150073 1709273 11964911 18802003 131614021