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131099001 = 3113972697
BaseRepresentation
bin1111101000001…
…10100101111001
3100010200112000120
413310012211321
5232030132001
621001523453
73151215555
oct764064571
9303615016
10131099001
1168002690
1237aa3589
1321211a97
14135a8865
15b799236
hex7d06979

131099001 has 8 divisors (see below), whose sum is σ = 190689504. Its totient is φ = 79453920.

The previous prime is 131098997. The next prime is 131099039. The reversal of 131099001 is 100990131.

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

It is not a de Polignac number, because 131099001 - 22 = 131098997 is a prime.

It is not an unprimeable number, because it can be changed into a prime (131099071) 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, 1986316 + ... + 1986381.

It is an arithmetic number, because the mean of its divisors is an integer number (23836188).

Almost surely, 2131099001 is an apocalyptic number.

131099001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

131099001 is a deficient number, since it is larger than the sum of its proper divisors (59590503).

131099001 is a wasteful number, since it uses less digits than its factorization.

131099001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3972711.

The product of its (nonzero) digits is 243, while the sum is 24.

The square root of 131099001 is about 11449.8472042207. The cubic root of 131099001 is about 508.0032149444.

The spelling of 131099001 in words is "one hundred thirty-one million, ninety-nine thousand, one".

Divisors: 1 3 11 33 3972697 11918091 43699667 131099001