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20120203032 = 2332131393403
BaseRepresentation
bin10010101111010000…
…011110111100011000
31220221012201012210220
4102233100132330120
5312201232444112
613124301440040
71311411622026
oct225720367430
956835635726
1020120203032
11859536a376
123a96270020
131b885730a7
14d8c255716
157cb5b198c
hex4af41ef18

20120203032 has 32 divisors (see below), whose sum is σ = 50324239680. Its totient is φ = 6703570080.

The previous prime is 20120203021. The next prime is 20120203049. The reversal of 20120203032 is 23030202102.

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, 145558 + ... + 247845.

It is an arithmetic number, because the mean of its divisors is an integer number (1572632490).

Almost surely, 220120203032 is an apocalyptic number.

It is an amenable number.

20120203032 is an abundant number, since it is smaller than the sum of its proper divisors (30204036648).

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

20120203032 is a wasteful number, since it uses less digits than its factorization.

20120203032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 395543 (or 395539 counting only the distinct ones).

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

Adding to 20120203032 its reverse (23030202102), we get a palindrome (43150405134).

The spelling of 20120203032 in words is "twenty billion, one hundred twenty million, two hundred three thousand, thirty-two".

Divisors: 1 2 3 4 6 8 12 24 2131 4262 6393 8524 12786 17048 25572 51144 393403 786806 1180209 1573612 2360418 3147224 4720836 9441672 838341793 1676683586 2515025379 3353367172 5030050758 6706734344 10060101516 20120203032