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102312231100 = 22521023122311
BaseRepresentation
bin101111101001001001…
…0001100000010111100
3100210002022111212000121
41133102102030002330
53134013412343400
6115000202104324
710251251421022
oct1372222140274
9323068455017
10102312231100
113a4326505a2
12179b41ab0a4
139856877b21
144d48194712
1529dc22521a
hex17d248c0bc

102312231100 has 18 divisors (see below), whose sum is σ = 222017541704. Its totient is φ = 40924892400.

The previous prime is 102312231071. The next prime is 102312231103. The reversal of 102312231100 is 1132213201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102312231103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 511561056 + ... + 511561255.

Almost surely, 2102312231100 is an apocalyptic number.

102312231100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102312231100 is an abundant number, since it is smaller than the sum of its proper divisors (119705310604).

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

102312231100 is a wasteful number, since it uses less digits than its factorization.

102312231100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1023122325 (or 1023122318 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 102312231100 its reverse (1132213201), we get a palindrome (103444444301).

The spelling of 102312231100 in words is "one hundred two billion, three hundred twelve million, two hundred thirty-one thousand, one hundred".

Divisors: 1 2 4 5 10 20 25 50 100 1023122311 2046244622 4092489244 5115611555 10231223110 20462446220 25578057775 51156115550 102312231100