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131601753 = 35541571
BaseRepresentation
bin1111101100000…
…01010101011001
3100011122001200000
413312001111121
5232142224003
621020403213
73155411403
oct766012531
9304561600
10131601753
1168316388
12380a6509
132135987a
1413699b73
15b8481a3
hex7d81559

131601753 has 12 divisors (see below), whose sum is σ = 197132208. Its totient is φ = 87734340.

The previous prime is 131601737. The next prime is 131601763. The reversal of 131601753 is 357106131.

131601753 is a `hidden beast` number, since 1 + 3 + 1 + 601 + 7 + 53 = 666.

It is not a de Polignac number, because 131601753 - 24 = 131601737 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (131601763) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 270543 + ... + 271028.

It is an arithmetic number, because the mean of its divisors is an integer number (16427684).

Almost surely, 2131601753 is an apocalyptic number.

It is an amenable number.

131601753 is a deficient number, since it is larger than the sum of its proper divisors (65530455).

131601753 is an frugal number, since it uses more digits than its factorization.

131601753 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 541586 (or 541574 counting only the distinct ones).

The product of its (nonzero) digits is 1890, while the sum is 27.

The square root of 131601753 is about 11471.7807248918. The cubic root of 131601753 is about 508.6517676833.

Adding to 131601753 its reverse (357106131), we get a palindrome (488707884).

The spelling of 131601753 in words is "one hundred thirty-one million, six hundred one thousand, seven hundred fifty-three".

Divisors: 1 3 9 27 81 243 541571 1624713 4874139 14622417 43867251 131601753