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2312232020 = 225716515943
BaseRepresentation
bin1000100111010001…
…1101110001010100
312222010212120000222
42021310131301110
514213412411040
61021235053512
7111204435140
oct21164356124
95863776028
102312232020
11a8721615a
12546441298
132ab068937
1417d134220
15d7edabb5
hex89d1dc54

2312232020 has 24 divisors (see below), whose sum is σ = 5549357184. Its totient is φ = 792765216.

The previous prime is 2312232001. The next prime is 2312232047. The reversal of 2312232020 is 202322132.

It is a self number, because there is not a number n which added to its sum of digits gives 2312232020.

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, 8257832 + ... + 8258111.

It is an arithmetic number, because the mean of its divisors is an integer number (231223216).

Almost surely, 22312232020 is an apocalyptic number.

2312232020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2312232020 is an abundant number, since it is smaller than the sum of its proper divisors (3237125164).

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

2312232020 is a wasteful number, since it uses less digits than its factorization.

2312232020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16515959 (or 16515957 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 2312232020 is about 48085.6737500890. The cubic root of 2312232020 is about 1322.3420351325.

Adding to 2312232020 its reverse (202322132), we get a palindrome (2514554152).

The spelling of 2312232020 in words is "two billion, three hundred twelve million, two hundred thirty-two thousand, twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 16515943 33031886 66063772 82579715 115611601 165159430 231223202 330318860 462446404 578058005 1156116010 2312232020