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20098488 = 2331749261
BaseRepresentation
bin100110010101…
…0110110111000
31101211002221110
41030222312320
520121122423
61554440320
7332556114
oct114526670
941732843
1020098488
1110388323
1268930a0
1342191c7
142952744
151b70193
hex132adb8

20098488 has 32 divisors (see below), whose sum is σ = 53202960. Its totient is φ = 6305280.

The previous prime is 20098453. The next prime is 20098489. The reversal of 20098488 is 88489002.

It is a happy number.

It is a super-2 number, since 2×200984882 = 807898439772288, which contains 22 as substring.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20098489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24223 + ... + 25038.

Almost surely, 220098488 is an apocalyptic number.

It is an amenable number.

20098488 is an abundant number, since it is smaller than the sum of its proper divisors (33104472).

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

20098488 is a wasteful number, since it uses less digits than its factorization.

20098488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49287 (or 49283 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 39.

The square root of 20098488 is about 4483.1337254202. The cubic root of 20098488 is about 271.8865948814.

The spelling of 20098488 in words is "twenty million, ninety-eight thousand, four hundred eighty-eight".

Divisors: 1 2 3 4 6 8 12 17 24 34 51 68 102 136 204 408 49261 98522 147783 197044 295566 394088 591132 837437 1182264 1674874 2512311 3349748 5024622 6699496 10049244 20098488