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2320752031 = 13397449671
BaseRepresentation
bin1000101001010011…
…1101110110011111
312222201220102021221
42022110331312133
514223103031111
61022141434211
7111340031623
oct21224756637
95881812257
102320752031
11a91005394
1254926b967
132aca5c970
14180311183
15d8b20371
hex8a53dd9f

2320752031 has 8 divisors (see below), whose sum is σ = 2505572384. Its totient is φ = 2136831840.

The previous prime is 2320752029. The next prime is 2320752053. The reversal of 2320752031 is 1302570232.

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

It is not a de Polignac number, because 2320752031 - 21 = 2320752029 is a prime.

It is a super-2 number, since 2×23207520312 = 10771779978781249922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2320751987 and 2320752005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2320752631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 219675 + ... + 229996.

It is an arithmetic number, because the mean of its divisors is an integer number (313196548).

Almost surely, 22320752031 is an apocalyptic number.

2320752031 is a deficient number, since it is larger than the sum of its proper divisors (184820353).

2320752031 is a wasteful number, since it uses less digits than its factorization.

2320752031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 450081.

The product of its (nonzero) digits is 2520, while the sum is 25.

The square root of 2320752031 is about 48174.1842795496. The cubic root of 2320752031 is about 1323.9642136027.

The spelling of 2320752031 in words is "two billion, three hundred twenty million, seven hundred fifty-two thousand, thirty-one".

Divisors: 1 13 397 5161 449671 5845723 178519387 2320752031