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213508039900 = 22522135080399
BaseRepresentation
bin1100011011011000010…
…0100010010011011100
3202102002202001012200111
43012312010202103130
511444231024234100
6242030110135404
721265633252351
oct3066604422334
9672082035614
10213508039900
11826037a4541
12354674b1564
1317197a2c5ac
14a4960d6628
1558492cb6ba
hex31b61224dc

213508039900 has 18 divisors (see below), whose sum is σ = 463312446800. Its totient is φ = 85403215920.

The previous prime is 213508039783. The next prime is 213508039903. The reversal of 213508039900 is 9930805312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213508039903) 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, 1067540100 + ... + 1067540299.

Almost surely, 2213508039900 is an apocalyptic number.

213508039900 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213508039900 is an abundant number, since it is smaller than the sum of its proper divisors (249804406900).

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

213508039900 is a wasteful number, since it uses less digits than its factorization.

213508039900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2135080413 (or 2135080406 counting only the distinct ones).

The product of its (nonzero) digits is 58320, while the sum is 40.

The spelling of 213508039900 in words is "two hundred thirteen billion, five hundred eight million, thirty-nine thousand, nine hundred".

Divisors: 1 2 4 5 10 20 25 50 100 2135080399 4270160798 8540321596 10675401995 21350803990 42701607980 53377009975 106754019950 213508039900