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100909393930 = 2541607940487
BaseRepresentation
bin101110111111010101…
…0110010100000001010
3100122110112211100012101
41131332222302200022
53123130301101210
6114205050304014
710201425460522
oct1357652624012
9318415740171
10100909393930
11398827a4234
121768242800a
139692044b67
144c53b44682
152958ebea3a
hex177eab280a

100909393930 has 32 divisors (see below), whose sum is σ = 186102282240. Its totient is φ = 39371825280.

The previous prime is 100909393891. The next prime is 100909393931. The reversal of 100909393930 is 39393909001.

It is not an unprimeable number, because it can be changed into a prime (100909393931) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 2472147 + ... + 2512633.

It is an arithmetic number, because the mean of its divisors is an integer number (5815696320).

Almost surely, 2100909393930 is an apocalyptic number.

100909393930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

100909393930 is a deficient number, since it is larger than the sum of its proper divisors (85192888310).

100909393930 is a wasteful number, since it uses less digits than its factorization.

100909393930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46614.

The product of its (nonzero) digits is 177147, while the sum is 46.

The spelling of 100909393930 in words is "one hundred billion, nine hundred nine million, three hundred ninety-three thousand, nine hundred thirty".

Divisors: 1 2 5 10 41 82 205 410 6079 12158 30395 40487 60790 80974 202435 249239 404870 498478 1246195 1659967 2492390 3319934 8299835 16599670 246120473 492240946 1230602365 2461204730 10090939393 20181878786 50454696965 100909393930