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131302203100 = 22521313022031
BaseRepresentation
bin111101001001000111…
…0001001111011011100
3110112220200021000110021
41322102032021323130
54122401330444400
6140152553521524
712325535211565
oct1722216117334
9415820230407
10131302203100
1150759741642
1221544a132a4
13c4c6901503
1464d840116c
15363733b71a
hex1e92389edc

131302203100 has 18 divisors (see below), whose sum is σ = 284925780944. Its totient is φ = 52520881200.

The previous prime is 131302203089. The next prime is 131302203121. The reversal of 131302203100 is 1302203131.

It is a super-2 number, since 2×1313022031002 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 656510916 + ... + 656511115.

Almost surely, 2131302203100 is an apocalyptic number.

131302203100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131302203100 is an abundant number, since it is smaller than the sum of its proper divisors (153623577844).

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

131302203100 is a wasteful number, since it uses less digits than its factorization.

131302203100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1313022045 (or 1313022038 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 131302203100 its reverse (1302203131), we get a palindrome (132604406231).

The spelling of 131302203100 in words is "one hundred thirty-one billion, three hundred two million, two hundred three thousand, one hundred".

Divisors: 1 2 4 5 10 20 25 50 100 1313022031 2626044062 5252088124 6565110155 13130220310 26260440620 32825550775 65651101550 131302203100