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100230031100 = 22521272178791
BaseRepresentation
bin101110101011000101…
…1001110011011111100
3100120201012111010121002
41131112023032123330
53120232341443400
6114013421225432
710145536131053
oct1352613163374
9316635433532
10100230031100
113956426a951
1217512a02278
1395b437cc14
144bcb81d39a
152919526ed5
hex17562ce6fc

100230031100 has 36 divisors (see below), whose sum is σ = 217519025808. Its totient is φ = 40088352000.

The previous prime is 100230031081. The next prime is 100230031117. The reversal of 100230031100 is 1130032001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1232705 + ... + 1311495.

Almost surely, 2100230031100 is an apocalyptic number.

100230031100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100230031100 is an abundant number, since it is smaller than the sum of its proper divisors (117288994708).

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

100230031100 is a wasteful number, since it uses less digits than its factorization.

100230031100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91526 (or 91519 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 11.

Adding to 100230031100 its reverse (1130032001), we get a palindrome (101360063101).

Subtracting from 100230031100 its reverse (1130032001), we obtain a palindrome (99099999099).

The spelling of 100230031100 in words is "one hundred billion, two hundred thirty million, thirty-one thousand, one hundred".

Divisors: 1 2 4 5 10 20 25 50 100 12721 25442 50884 63605 78791 127210 157582 254420 315164 318025 393955 636050 787910 1272100 1575820 1969775 3939550 7879100 1002300311 2004600622 4009201244 5011501555 10023003110 20046006220 25057507775 50115015550 100230031100