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20012232310 = 257285889033
BaseRepresentation
bin10010101000110100…
…100110111001110110
31220122200112201211021
4102220310212321312
5311441112413220
613105443331354
71305631111420
oct225064467166
956580481737
1020012232310
11853a424374
123a66080b5a
131b6c09b5a5
14d7bb8b810
157c1d854aa
hex4a8d26e76

20012232310 has 16 divisors (see below), whose sum is σ = 41168020896. Its totient is φ = 6861336768.

The previous prime is 20012232301. The next prime is 20012232323. The reversal of 20012232310 is 1323221002.

It is a super-2 number, since 2×200122323102 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

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, 142944447 + ... + 142944586.

It is an arithmetic number, because the mean of its divisors is an integer number (2573001306).

Almost surely, 220012232310 is an apocalyptic number.

20012232310 is an abundant number, since it is smaller than the sum of its proper divisors (21155788586).

20012232310 is a wasteful number, since it uses less digits than its factorization.

20012232310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285889047.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 20012232310 its reverse (1323221002), we get a palindrome (21335453312).

The spelling of 20012232310 in words is "twenty billion, twelve million, two hundred thirty-two thousand, three hundred ten".

Divisors: 1 2 5 7 10 14 35 70 285889033 571778066 1429445165 2001223231 2858890330 4002446462 10006116155 20012232310