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20010253355 = 516272459773
BaseRepresentation
bin10010101000101101…
…000011110000101011
31220122112211012012122
4102220231003300223
5311440111101410
613105333101455
71305605230031
oct225055036053
956575735178
1020010253355
1185392a2574
123a6548788b
131b6b857901
14d7b7d4551
157c1ae3e55
hex4a8b43c2b

20010253355 has 8 divisors (see below), whose sum is σ = 24027072432. Its totient is φ = 15998357088.

The previous prime is 20010253273. The next prime is 20010253357. The reversal of 20010253355 is 55335201002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20010253355 - 210 = 20010252331 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20010253357) 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, 1221752 + ... + 1238021.

It is an arithmetic number, because the mean of its divisors is an integer number (3003384054).

Almost surely, 220010253355 is an apocalyptic number.

20010253355 is a deficient number, since it is larger than the sum of its proper divisors (4016819077).

20010253355 is a wasteful number, since it uses less digits than its factorization.

20010253355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2461405.

The product of its (nonzero) digits is 4500, while the sum is 26.

Adding to 20010253355 its reverse (55335201002), we get a palindrome (75345454357).

The spelling of 20010253355 in words is "twenty billion, ten million, two hundred fifty-three thousand, three hundred fifty-five".

Divisors: 1 5 1627 8135 2459773 12298865 4002050671 20010253355