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100203131230 = 2545672194069
BaseRepresentation
bin101110101010010010…
…0100111000101011110
3100120122022212110220121
41131110210213011132
53120204000144410
6114011020505154
710145061363556
oct1352444470536
9316568773817
10100203131230
1139550067654
12175059ab1ba
1395ab922037
144bc801a166
152916eb19da
hex175492715e

100203131230 has 16 divisors (see below), whose sum is σ = 180405211680. Its totient is φ = 40072457952.

The previous prime is 100203131219. The next prime is 100203131257. The reversal of 100203131230 is 32131302001.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1051365 + ... + 1142704.

It is an arithmetic number, because the mean of its divisors is an integer number (11275325730).

Almost surely, 2100203131230 is an apocalyptic number.

100203131230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

100203131230 is a deficient number, since it is larger than the sum of its proper divisors (80202080450).

100203131230 is a wasteful number, since it uses less digits than its factorization.

100203131230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2198643.

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

Adding to 100203131230 its reverse (32131302001), we get a palindrome (132334433231).

The spelling of 100203131230 in words is "one hundred billion, two hundred three million, one hundred thirty-one thousand, two hundred thirty".

Divisors: 1 2 5 10 4567 9134 22835 45670 2194069 4388138 10970345 21940690 10020313123 20040626246 50101565615 100203131230