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20011432232 = 2311317335569
BaseRepresentation
bin10010101000110001…
…100011100100101000
31220122122001002022202
4102220301203210220
5311440411312412
613105414235332
71305621240011
oct225061434450
956578032282
1020011432232
118539a28250
123a65955b48
131b6bb7b37c
14d7ba20008
157c1c783c2
hex4a8c63928

20011432232 has 32 divisors (see below), whose sum is σ = 42252883200. Its totient is φ = 8802681600.

The previous prime is 20011432213. The next prime is 20011432247. The reversal of 20011432232 is 23223411002.

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, 3665057 + ... + 3670512.

It is an arithmetic number, because the mean of its divisors is an integer number (1320402600).

Almost surely, 220011432232 is an apocalyptic number.

20011432232 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20011432232 is an abundant number, since it is smaller than the sum of its proper divisors (22241450968).

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

20011432232 is a wasteful number, since it uses less digits than its factorization.

20011432232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7335617 (or 7335613 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 20011432232 its reverse (23223411002), we get a palindrome (43234843234).

The spelling of 20011432232 in words is "twenty billion, eleven million, four hundred thirty-two thousand, two hundred thirty-two".

Divisors: 1 2 4 8 11 22 31 44 62 88 124 248 341 682 1364 2728 7335569 14671138 29342276 58684552 80691259 161382518 227402639 322765036 454805278 645530072 909610556 1819221112 2501429029 5002858058 10005716116 20011432232