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131340955 = 531847361
BaseRepresentation
bin1111101010000…
…01101010011011
3100011010210220211
413311001222123
5232110402310
621011031551
73153244144
oct765015233
9304123824
10131340955
1168158449
1237b9b5b7
1321297c55
141362cacb
15b7e5c8a
hex7d41a9b

131340955 has 8 divisors (see below), whose sum is σ = 162693504. Its totient is φ = 101683200.

The previous prime is 131340953. The next prime is 131341003. The reversal of 131340955 is 559043131.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 131340955 - 21 = 131340953 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131340953) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 423526 + ... + 423835.

It is an arithmetic number, because the mean of its divisors is an integer number (20336688).

Almost surely, 2131340955 is an apocalyptic number.

131340955 is a deficient number, since it is larger than the sum of its proper divisors (31352549).

131340955 is an equidigital number, since it uses as much as digits as its factorization.

131340955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 847397.

The product of its (nonzero) digits is 8100, while the sum is 31.

The square root of 131340955 is about 11460.4081515450. The cubic root of 131340955 is about 508.3155434665.

The spelling of 131340955 in words is "one hundred thirty-one million, three hundred forty thousand, nine hundred fifty-five".

Divisors: 1 5 31 155 847361 4236805 26268191 131340955