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200897052990 = 23513155579199
BaseRepresentation
bin1011101100011001100…
…1011100000100111110
3201012112212020200212020
42323012121130010332
511242414121143430
6232142453021010
720341262526564
oct2730631340476
9635485220766
10200897052990
1178222170407
1232b28024766
1315c3812336a
149a1b2b1a34
15535c0bcb10
hex2ec665c13e

200897052990 has 64 divisors (see below), whose sum is σ = 485973734400. Its totient is φ = 53148251520.

The previous prime is 200897052977. The next prime is 200897052991. The reversal of 200897052990 is 99250798002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200897052991) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21834411 + ... + 21843609.

It is an arithmetic number, because the mean of its divisors is an integer number (7593339600).

Almost surely, 2200897052990 is an apocalyptic number.

200897052990 is an abundant number, since it is smaller than the sum of its proper divisors (285076681410).

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

200897052990 is a wasteful number, since it uses less digits than its factorization.

200897052990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14897.

The product of its (nonzero) digits is 816480, while the sum is 51.

The spelling of 200897052990 in words is "two hundred billion, eight hundred ninety-seven million, fifty-two thousand, nine hundred ninety".

Divisors: 1 2 3 5 6 10 15 30 131 262 393 655 786 1310 1965 3930 5557 9199 11114 16671 18398 27597 27785 33342 45995 55194 55570 83355 91990 137985 166710 275970 727967 1205069 1455934 2183901 2410138 3615207 3639835 4367802 6025345 7230414 7279670 10919505 12050690 18076035 21839010 36152070 51118843 102237686 153356529 255594215 306713058 511188430 766782645 1533565290 6696568433 13393136866 20089705299 33482842165 40179410598 66965684330 100448526495 200897052990