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11032400420 = 225551620021
BaseRepresentation
bin10100100011001010…
…10001001000100100
31001110212102000020222
422101211101020210
5140043243303140
65022422343512
7540251566466
oct122145211044
931425360228
1011032400420
1147515587a8
12217a88ab98
13106a8600b2
14769306136
1544883e5b5
hex291951224

11032400420 has 12 divisors (see below), whose sum is σ = 23168040924. Its totient is φ = 4412960160.

The previous prime is 11032400419. The next prime is 11032400437. The reversal of 11032400420 is 2400423011.

It can be written as a sum of positive squares in 2 ways, for example, as 5536550464 + 5495849956 = 74408^2 + 74134^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 275809991 + ... + 275810030.

It is an arithmetic number, because the mean of its divisors is an integer number (1930670077).

Almost surely, 211032400420 is an apocalyptic number.

11032400420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11032400420 is an abundant number, since it is smaller than the sum of its proper divisors (12135640504).

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

11032400420 is a wasteful number, since it uses less digits than its factorization.

11032400420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 551620030 (or 551620028 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 11032400420 its reverse (2400423011), we get a palindrome (13432823431).

The spelling of 11032400420 in words is "eleven billion, thirty-two million, four hundred thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 551620021 1103240042 2206480084 2758100105 5516200210 11032400420