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20055756030 = 235668525201
BaseRepresentation
bin10010101011011010…
…101000110011111110
31220202201102222010220
4102223122220303332
5312033233143110
613114040242210
71310000053632
oct225332506376
956681388126
1020055756030
118561a51392
123a78770366
131b780c9c7b
14d8387adc2
157c5ad1370
hex4ab6a8cfe

20055756030 has 16 divisors (see below), whose sum is σ = 48133814544. Its totient is φ = 5348201600.

The previous prime is 20055755999. The next prime is 20055756031. The reversal of 20055756030 is 3065755002.

It is a junction number, because it is equal to n+sod(n) for n = 20055755982 and 20055756000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20055756031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 334262571 + ... + 334262630.

It is an arithmetic number, because the mean of its divisors is an integer number (3008363409).

Almost surely, 220055756030 is an apocalyptic number.

20055756030 is an abundant number, since it is smaller than the sum of its proper divisors (28078058514).

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

20055756030 is a wasteful number, since it uses less digits than its factorization.

20055756030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 668525211.

The product of its (nonzero) digits is 31500, while the sum is 33.

The spelling of 20055756030 in words is "twenty billion, fifty-five million, seven hundred fifty-six thousand, thirty".

Divisors: 1 2 3 5 6 10 15 30 668525201 1337050402 2005575603 3342626005 4011151206 6685252010 10027878015 20055756030