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20312300202 = 2310931058563
BaseRepresentation
bin10010111010101101…
…010001101010101010
31221102121011202120220
4102322231101222222
5313044422101302
613155323030510
71316233463055
oct227255215252
957377152526
1020312300202
118683844867
123b2a66b436
131bb92c125c
14da997ba9c
157dd3a94bc
hex4bab51aaa

20312300202 has 16 divisors (see below), whose sum is σ = 40997304480. Its totient is φ = 6708649392.

The previous prime is 20312300171. The next prime is 20312300243. The reversal of 20312300202 is 20200321302.

20312300202 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15528628 + ... + 15529935.

It is an arithmetic number, because the mean of its divisors is an integer number (2562331530).

Almost surely, 220312300202 is an apocalyptic number.

20312300202 is an abundant number, since it is smaller than the sum of its proper divisors (20685004278).

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

20312300202 is a wasteful number, since it uses less digits than its factorization.

20312300202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31058677.

The product of its (nonzero) digits is 144, while the sum is 15.

Adding to 20312300202 its reverse (20200321302), we get a palindrome (40512621504).

The spelling of 20312300202 in words is "twenty billion, three hundred twelve million, three hundred thousand, two hundred two".

Divisors: 1 2 3 6 109 218 327 654 31058563 62117126 93175689 186351378 3385383367 6770766734 10156150101 20312300202