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20030335232 = 28233335809
BaseRepresentation
bin10010101001111001…
…101010100100000000
31220200221121110100212
4102221321222210000
5312010231211412
613111331333252
71306241016545
oct225171524400
956627543325
1020030335232
118549669366
123a70151228
131b72a6938b
14d80340bcc
157c375e222
hex4a9e6a900

20030335232 has 36 divisors (see below), whose sum is σ = 40154144940. Its totient is φ = 9972154368.

The previous prime is 20030335229. The next prime is 20030335253. The reversal of 20030335232 is 23253303002.

It can be written as a sum of positive squares in 2 ways, for example, as 12184627456 + 7845707776 = 110384^2 + 88576^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20030335198 and 20030335207.

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, 108257 + ... + 227552.

It is an arithmetic number, because the mean of its divisors is an integer number (1115392915).

Almost surely, 220030335232 is an apocalyptic number.

It is an amenable number.

20030335232 is an abundant number, since it is smaller than the sum of its proper divisors (20123809708).

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

20030335232 is an equidigital number, since it uses as much as digits as its factorization.

20030335232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 336058 (or 336044 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 23.

Adding to 20030335232 its reverse (23253303002), we get a palindrome (43283638234).

The spelling of 20030335232 in words is "twenty billion, thirty million, three hundred thirty-five thousand, two hundred thirty-two".

Divisors: 1 2 4 8 16 32 64 128 233 256 466 932 1864 3728 7456 14912 29824 59648 335809 671618 1343236 2686472 5372944 10745888 21491776 42983552 78243497 85967104 156486994 312973988 625947976 1251895952 2503791904 5007583808 10015167616 20030335232