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131106426 = 23111986461
BaseRepresentation
bin1111101000010…
…00011001111010
3100010200220012120
413310020121322
5232030401201
621002022110
73151246323
oct764103172
9303626176
10131106426
1168008220
1237aa7936
1321215289
14135ab44a
15b79b536
hex7d0867a

131106426 has 16 divisors (see below), whose sum is σ = 286050528. Its totient is φ = 39729200.

The previous prime is 131106421. The next prime is 131106439. The reversal of 131106426 is 624601131.

It is a junction number, because it is equal to n+sod(n) for n = 131106396 and 131106405.

It is not an unprimeable number, because it can be changed into a prime (131106421) 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, 993165 + ... + 993296.

It is an arithmetic number, because the mean of its divisors is an integer number (17878158).

Almost surely, 2131106426 is an apocalyptic number.

131106426 is an abundant number, since it is smaller than the sum of its proper divisors (154944102).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131106426 is a wasteful number, since it uses less digits than its factorization.

131106426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1986477.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 131106426 is about 11450.1714397646. The cubic root of 131106426 is about 508.0128052862.

Adding to 131106426 its reverse (624601131), we get a palindrome (755707557).

The spelling of 131106426 in words is "one hundred thirty-one million, one hundred six thousand, four hundred twenty-six".

Divisors: 1 2 3 6 11 22 33 66 1986461 3972922 5959383 11918766 21851071 43702142 65553213 131106426