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102050231900 = 22521020502319
BaseRepresentation
bin101111100001010101…
…0101111011001011100
3100202102001111220200112
41133002222233121130
53132444324410100
6114514202345152
710241620441661
oct1370252573134
9322361456615
10102050231900
113a308771731
12179404bb1b8
1398144c3906
144d21473a68
1529c4220b35
hex17c2aaf65c

102050231900 has 18 divisors (see below), whose sum is σ = 221449003440. Its totient is φ = 40820092720.

The previous prime is 102050231893. The next prime is 102050231917. The reversal of 102050231900 is 9132050201.

It is a super-3 number, since 3×1020502319003 (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 510251060 + ... + 510251259.

Almost surely, 2102050231900 is an apocalyptic number.

102050231900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102050231900 is an abundant number, since it is smaller than the sum of its proper divisors (119398771540).

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

102050231900 is a wasteful number, since it uses less digits than its factorization.

102050231900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1020502333 (or 1020502326 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 23.

The spelling of 102050231900 in words is "one hundred two billion, fifty million, two hundred thirty-one thousand, nine hundred".

Divisors: 1 2 4 5 10 20 25 50 100 1020502319 2041004638 4082009276 5102511595 10205023190 20410046380 25512557975 51025115950 102050231900