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20245006430 = 2511296346397
BaseRepresentation
bin10010110110101100…
…100100100001011110
31221020220112212212222
4102312230210201132
5312430210201210
613144520425342
71314455500235
oct226654444136
957226485788
1020245006430
118649861a80
123b10018252
131ba838c45c
14da0a61b1c
157d7515655
hex4b6b2485e

20245006430 has 32 divisors (see below), whose sum is σ = 41124659040. Its totient is φ = 7107963520.

The previous prime is 20245006423. The next prime is 20245006471. The reversal of 20245006430 is 3460054202.

It is a self number, because there is not a number n which added to its sum of digits gives 20245006430.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 3170009 + ... + 3176388.

It is an arithmetic number, because the mean of its divisors is an integer number (1285145595).

Almost surely, 220245006430 is an apocalyptic number.

20245006430 is an abundant number, since it is smaller than the sum of its proper divisors (20879652610).

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

20245006430 is a wasteful number, since it uses less digits than its factorization.

20245006430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6346444.

The product of its (nonzero) digits is 5760, while the sum is 26.

The spelling of 20245006430 in words is "twenty billion, two hundred forty-five million, six thousand, four hundred thirty".

Divisors: 1 2 5 10 11 22 29 55 58 110 145 290 319 638 1595 3190 6346397 12692794 31731985 63463970 69810367 139620734 184045513 349051835 368091026 698103670 920227565 1840455130 2024500643 4049001286 10122503215 20245006430