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90972498200 = 23522002322717
BaseRepresentation
bin101010010111001100…
…0100010100100011000
322200211000210201212012
41110232120202210120
52442302424420300
6105443040205052
76400245322163
oct1245630424430
9280730721765
1090972498200
1135643670411
121576a609788
13876a4505bc
14459012aada
152576929435
hex152e622918

90972498200 has 48 divisors (see below), whose sum is σ = 211530932880. Its totient is φ = 36385580160.

The previous prime is 90972498187. The next prime is 90972498203. The reversal of 90972498200 is 289427909.

It is a Harshad number since it is a multiple of its sum of digits (50).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90972498203) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3993242 + ... + 4015958.

It is an arithmetic number, because the mean of its divisors is an integer number (4406894435).

Almost surely, 290972498200 is an apocalyptic number.

It is an amenable number.

90972498200 is an abundant number, since it is smaller than the sum of its proper divisors (120558434680).

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

90972498200 is a wasteful number, since it uses less digits than its factorization.

90972498200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42756 (or 42747 counting only the distinct ones).

The product of its (nonzero) digits is 653184, while the sum is 50.

The spelling of 90972498200 in words is "ninety billion, nine hundred seventy-two million, four hundred ninety-eight thousand, two hundred".

Divisors: 1 2 4 5 8 10 20 25 40 50 100 200 20023 22717 40046 45434 80092 90868 100115 113585 160184 181736 200230 227170 400460 454340 500575 567925 800920 908680 1001150 1135850 2002300 2271700 4004600 4543400 454862491 909724982 1819449964 2274312455 3638899928 4548624910 9097249820 11371562275 18194499640 22743124550 45486249100 90972498200