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2920938313 = 3124793479
BaseRepresentation
bin1010111000011001…
…1111101101001001
321112120021001002111
42232012133231021
521440230011223
61201501502321
7132245365066
oct25606375511
97476231074
102920938313
111269880207
126962719a1
133771c2287
141d9d05c6d
1512167830d
hexae19fb49

2920938313 has 4 divisors (see below), whose sum is σ = 2921063040. Its totient is φ = 2920813588.

The previous prime is 2920938301. The next prime is 2920938341. The reversal of 2920938313 is 3138390292.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 2920938313 - 225 = 2887383881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2920938353) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15493 + ... + 77986.

It is an arithmetic number, because the mean of its divisors is an integer number (730265760).

Almost surely, 22920938313 is an apocalyptic number.

It is an amenable number.

2920938313 is a deficient number, since it is larger than the sum of its proper divisors (124727).

2920938313 is an equidigital number, since it uses as much as digits as its factorization.

2920938313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124726.

The product of its (nonzero) digits is 69984, while the sum is 40.

The square root of 2920938313 is about 54045.7057776101. The cubic root of 2920938313 is about 1429.4669819758.

The spelling of 2920938313 in words is "two billion, nine hundred twenty million, nine hundred thirty-eight thousand, three hundred thirteen".

Divisors: 1 31247 93479 2920938313