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2331324021 = 31359777539
BaseRepresentation
bin1000101011110101…
…0010111001110101
320000110210112100010
42022331102321311
514233304332041
61023200210433
7111525633015
oct21275227165
96013715303
102331324021
11a96a76274
12550909a19
132b1cc1990
141818a3c45
15d9a0ca16
hex8af52e75

2331324021 has 8 divisors (see below), whose sum is σ = 3347542240. Its totient is φ = 1434660912.

The previous prime is 2331323933. The next prime is 2331324029. The reversal of 2331324021 is 1204231332.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2331324021 - 210 = 2331322997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2331324029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29888731 + ... + 29888808.

It is an arithmetic number, because the mean of its divisors is an integer number (418442780).

Almost surely, 22331324021 is an apocalyptic number.

It is an amenable number.

2331324021 is a deficient number, since it is larger than the sum of its proper divisors (1016218219).

2331324021 is a wasteful number, since it uses less digits than its factorization.

2331324021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59777555.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 2331324021 is about 48283.7863159053. The cubic root of 2331324021 is about 1325.9715709754.

Adding to 2331324021 its reverse (1204231332), we get a palindrome (3535555353).

The spelling of 2331324021 in words is "two billion, three hundred thirty-one million, three hundred twenty-four thousand, twenty-one".

Divisors: 1 3 13 39 59777539 179332617 777108007 2331324021