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20311011302 = 210155505651
BaseRepresentation
bin10010111010101000…
…010110111111100110
31221102111202021112212
4102322220112333212
5313044104330202
613155235243422
71316216514251
oct227250267746
957374667485
1020311011302
11868304445a
123b2a149572
131bb8c5c6aa
14da9724098
157dd202652
hex4baa16fe6

20311011302 has 4 divisors (see below), whose sum is σ = 30466516956. Its totient is φ = 10155505650.

The previous prime is 20311011283. The next prime is 20311011317.

20311011302 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5077752824 + ... + 5077752827.

It is an arithmetic number, because the mean of its divisors is an integer number (7616629239).

Almost surely, 220311011302 is an apocalyptic number.

20311011302 is a deficient number, since it is larger than the sum of its proper divisors (10155505654).

20311011302 is a wasteful number, since it uses less digits than its factorization.

20311011302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10155505653.

The product of its (nonzero) digits is 36, while the sum is 14.

It can be divided in two parts, 203110 and 11302, that added together give a palindrome (214412).

The spelling of 20311011302 in words is "twenty billion, three hundred eleven million, eleven thousand, three hundred two".

Divisors: 1 2 10155505651 20311011302