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130694787900 = 223452172311801
BaseRepresentation
bin111100110111000000…
…1000011001100111100
3110111100100022010110000
41321232001003030330
54120130331203100
6140012414514300
712304511240025
oct1715601031474
9414310263400
10130694787900
1150477889606
12213b5505990
13c42ab0a731
14647b887c4c
1535edd56900
hex1e6e04333c

130694787900 has 540 divisors, whose sum is σ = 464823679936. Its totient is φ = 31726080000.

The previous prime is 130694787887. The next prime is 130694787911. The reversal of 130694787900 is 9787496031.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (540).

It is a super-2 number, since 2×1306947879002 (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 179 ways as a sum of consecutive naturals, for example, 72567000 + ... + 72568800.

Almost surely, 2130694787900 is an apocalyptic number.

130694787900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 130694787900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (232411839968).

130694787900 is an abundant number, since it is smaller than the sum of its proper divisors (334128892036).

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

130694787900 is a wasteful number, since it uses less digits than its factorization.

130694787900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1892 (or 1859 counting only the distinct ones).

The product of its (nonzero) digits is 2286144, while the sum is 54.

The spelling of 130694787900 in words is "one hundred thirty billion, six hundred ninety-four million, seven hundred eighty-seven thousand, nine hundred".