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131553226 = 2719494561
BaseRepresentation
bin1111101011101…
…01011111001010
3100011112121002201
413311311133022
5232134200401
621015350414
73155120050
oct765653712
9304477081
10131553226
1168292982
123808240a
132134075c
14136861d0
15b838b01
hex7d757ca

131553226 has 16 divisors (see below), whose sum is σ = 237389760. Its totient is φ = 53412480.

The previous prime is 131553221. The next prime is 131553229. The reversal of 131553226 is 622355131.

It is a junction number, because it is equal to n+sod(n) for n = 131553194 and 131553203.

It is not an unprimeable number, because it can be changed into a prime (131553221) 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, 247015 + ... + 247546.

It is an arithmetic number, because the mean of its divisors is an integer number (14836860).

Almost surely, 2131553226 is an apocalyptic number.

131553226 is a deficient number, since it is larger than the sum of its proper divisors (105836534).

131553226 is a wasteful number, since it uses less digits than its factorization.

131553226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 494589.

The product of its digits is 5400, while the sum is 28.

The square root of 131553226 is about 11469.6654702742. The cubic root of 131553226 is about 508.5892396943.

The spelling of 131553226 in words is "one hundred thirty-one million, five hundred fifty-three thousand, two hundred twenty-six".

Divisors: 1 2 7 14 19 38 133 266 494561 989122 3461927 6923854 9396659 18793318 65776613 131553226