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20303763390 = 2325225597371
BaseRepresentation
bin10010111010001100…
…101101011110111110
31221102000010001021200
4102322030231132332
5313040230412030
613154420040330
71316101066311
oct227214553676
957360101250
1020303763390
118679a43a49
123b278330a6
131bb75c26a1
14da8798978
157dc76ed60
hex4ba32d7be

20303763390 has 24 divisors (see below), whose sum is σ = 52789785048. Its totient is φ = 5414336880.

The previous prime is 20303763373. The next prime is 20303763407. The reversal of 20303763390 is 9336730302.

20303763390 is a `hidden beast` number, since 203 + 0 + 3 + 7 + 63 + 390 = 666.

It is an interprime number because it is at equal distance from previous prime (20303763373) and next prime (20303763407).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 112798596 + ... + 112798775.

It is an arithmetic number, because the mean of its divisors is an integer number (2199574377).

Almost surely, 220303763390 is an apocalyptic number.

20303763390 is an abundant number, since it is smaller than the sum of its proper divisors (32486021658).

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

20303763390 is a wasteful number, since it uses less digits than its factorization.

20303763390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225597384 (or 225597381 counting only the distinct ones).

The product of its (nonzero) digits is 61236, while the sum is 36.

The spelling of 20303763390 in words is "twenty billion, three hundred three million, seven hundred sixty-three thousand, three hundred ninety".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 225597371 451194742 676792113 1127986855 1353584226 2030376339 2255973710 3383960565 4060752678 6767921130 10151881695 20303763390