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20007650454 = 2311303146219
BaseRepresentation
bin10010101000100011…
…001000010010010110
31220122100220221200220
4102220203020102112
5311433424303304
613105201215210
71305544136301
oct225043102226
956570827626
1020007650454
118537884a10
123a64631506
131b6b155c2c
14d7b317b38
157c177cad9
hex4a88c8496

20007650454 has 16 divisors (see below), whose sum is σ = 43653055680. Its totient is φ = 6062924360.

The previous prime is 20007650441. The next prime is 20007650459. The reversal of 20007650454 is 45405670002.

It is a super-2 number, since 2×200076504542 (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20007650459) 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, 151573044 + ... + 151573175.

It is an arithmetic number, because the mean of its divisors is an integer number (2728315980).

Almost surely, 220007650454 is an apocalyptic number.

20007650454 is an abundant number, since it is smaller than the sum of its proper divisors (23645405226).

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

20007650454 is a wasteful number, since it uses less digits than its factorization.

20007650454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303146235.

The product of its (nonzero) digits is 33600, while the sum is 33.

The spelling of 20007650454 in words is "twenty billion, seven million, six hundred fifty thousand, four hundred fifty-four".

Divisors: 1 2 3 6 11 22 33 66 303146219 606292438 909438657 1818877314 3334608409 6669216818 10003825227 20007650454