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131222119100 = 22521312221191
BaseRepresentation
bin111101000110101110…
…0101010001010111100
3110112201002120022212012
41322031130222022330
54122220330302400
6140141013230352
712323543415542
oct1721534521274
9415632508765
10131222119100
1150718513316
12215220323b8
13c4b3141b27
1464cb915d92
1536302bcd35
hex1e8d72a2bc

131222119100 has 18 divisors (see below), whose sum is σ = 284751998664. Its totient is φ = 52488847600.

The previous prime is 131222119079. The next prime is 131222119103. The reversal of 131222119100 is 1911222131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131222119103) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 656110496 + ... + 656110695.

Almost surely, 2131222119100 is an apocalyptic number.

131222119100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131222119100 is an abundant number, since it is smaller than the sum of its proper divisors (153529879564).

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

131222119100 is a wasteful number, since it uses less digits than its factorization.

131222119100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1312221205 (or 1312221198 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 23.

The spelling of 131222119100 in words is "one hundred thirty-one billion, two hundred twenty-two million, one hundred nineteen thousand, one hundred".

Divisors: 1 2 4 5 10 20 25 50 100 1312221191 2624442382 5248884764 6561105955 13122211910 26244423820 32805529775 65611059550 131222119100