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2331440242 = 21279991079
BaseRepresentation
bin1000101011110110…
…1111010001110010
320000111000102202121
42022331233101302
514233322041432
61023202504454
7111526625605
oct21275572162
96014012677
102331440242
11a9704561a
1255096512a
132b2032851
141818d433c
15d9a32197
hex8af6f472

2331440242 has 8 divisors (see below), whose sum is σ = 3497472000. Its totient is φ = 1165616244.

The previous prime is 2331440213. The next prime is 2331440257. The reversal of 2331440242 is 2420441332.

It is a happy number.

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

It is a super-2 number, since 2×23314402422 = 10871227204034037128, which contains 22 as substring.

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, 19942 + ... + 71137.

It is an arithmetic number, because the mean of its divisors is an integer number (437184000).

Almost surely, 22331440242 is an apocalyptic number.

2331440242 is a deficient number, since it is larger than the sum of its proper divisors (1166031758).

2331440242 is a wasteful number, since it uses less digits than its factorization.

2331440242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103880.

The product of its (nonzero) digits is 4608, while the sum is 25.

The square root of 2331440242 is about 48284.9898208543. The cubic root of 2331440242 is about 1325.9936046895.

Adding to 2331440242 its reverse (2420441332), we get a palindrome (4751881574).

The spelling of 2331440242 in words is "two billion, three hundred thirty-one million, four hundred forty thousand, two hundred forty-two".

Divisors: 1 2 12799 25598 91079 182158 1165720121 2331440242