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3120232340 = 225156011617
BaseRepresentation
bin1011100111111010…
…1111011110010100
322001110021020002202
42321332233132110
522342234413330
61233341224032
7140215352201
oct27176573624
98043236082
103120232340
111361320815
12730b62018
133a9590134
14218582ca8
15133de3445
hexb9faf794

3120232340 has 12 divisors (see below), whose sum is σ = 6552487956. Its totient is φ = 1248092928.

The previous prime is 3120232327. The next prime is 3120232391. The reversal of 3120232340 is 432320213.

It can be written as a sum of positive squares in 2 ways, for example, as 682045456 + 2438186884 = 26116^2 + 49378^2 .

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 156011617 = 3120232340 / (3 + 1 + 2 + 0 + 2 + 3 + 2 + 3 + 4 + 0).

It is a congruent number.

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, 78005789 + ... + 78005828.

It is an arithmetic number, because the mean of its divisors is an integer number (546040663).

Almost surely, 23120232340 is an apocalyptic number.

It is an amenable number.

3120232340 is an abundant number, since it is smaller than the sum of its proper divisors (3432255616).

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

3120232340 is a wasteful number, since it uses less digits than its factorization.

3120232340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156011626 (or 156011624 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 3120232340 is about 55859.0399129810. The cubic root of 3120232340 is about 1461.2649854806.

Adding to 3120232340 its reverse (432320213), we get a palindrome (3552552553).

The spelling of 3120232340 in words is "three billion, one hundred twenty million, two hundred thirty-two thousand, three hundred forty".

Divisors: 1 2 4 5 10 20 156011617 312023234 624046468 780058085 1560116170 3120232340