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20315225350 = 2527317012671
BaseRepresentation
bin10010111010111000…
…011011110100000110
31221102210200101010201
4102322320123310012
5313101144202400
613155505441114
71316300365150
oct227270336406
957383611121
1020315225350
118685462542
123b2b64019a
131bb9aa6804
14daa0ddad0
157dd78606a
hex4bae1bd06

20315225350 has 96 divisors (see below), whose sum is σ = 44657713152. Its totient is φ = 6728400000.

The previous prime is 20315225347. The next prime is 20315225383. The reversal of 20315225350 is 5352251302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7604515 + ... + 7607185.

It is an arithmetic number, because the mean of its divisors is an integer number (465184512).

Almost surely, 220315225350 is an apocalyptic number.

20315225350 is an abundant number, since it is smaller than the sum of its proper divisors (24342487802).

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

20315225350 is a wasteful number, since it uses less digits than its factorization.

20315225350 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3422 (or 3417 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 28.

Adding to 20315225350 its reverse (5352251302), we get a palindrome (25667476652).

The spelling of 20315225350 in words is "twenty billion, three hundred fifteen million, two hundred twenty-five thousand, three hundred fifty".

Divisors: 1 2 5 7 10 14 25 31 35 50 62 70 155 175 217 310 350 434 701 775 1085 1402 1550 2170 2671 3505 4907 5342 5425 7010 9814 10850 13355 17525 18697 21731 24535 26710 35050 37394 43462 49070 66775 82801 93485 108655 122675 133550 152117 165602 186970 217310 245350 304234 414005 467425 543275 579607 760585 828010 934850 1086550 1159214 1521170 1872371 2070025 2898035 3744742 3802925 4140050 5796070 7605850 9361855 13106597 14490175 18723710 26213194 28980350 46809275 58043501 65532985 93618550 116087002 131065970 290217505 327664925 406304507 580435010 655329850 812609014 1451087525 2031522535 2902175050 4063045070 10157612675 20315225350