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2320315421 = 15187152783
BaseRepresentation
bin1000101001001101…
…0011010000011101
312222201002020101012
42022103103100131
514223000043141
61022124225005
7111333232664
oct21223232035
95881066335
102320315421
11a90837356
1254909b165
132ac939008
14180239ddb
15d8a85ceb
hex8a4d341d

2320315421 has 4 divisors (see below), whose sum is σ = 2320483392. Its totient is φ = 2320147452.

The previous prime is 2320315367. The next prime is 2320315423. The reversal of 2320315421 is 1245130232.

Adding to 2320315421 its reverse (1245130232), we get a palindrome (3565445653).

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.

It is a cyclic number.

It is not a de Polignac number, because 2320315421 - 222 = 2316121117 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 (2320315423) 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, 61205 + ... + 91578.

It is an arithmetic number, because the mean of its divisors is an integer number (580120848).

Almost surely, 22320315421 is an apocalyptic number.

It is an amenable number.

2320315421 is a deficient number, since it is larger than the sum of its proper divisors (167971).

2320315421 is a wasteful number, since it uses less digits than its factorization.

2320315421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167970.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 2320315421 is about 48169.6524899236. The cubic root of 2320315421 is about 1323.8811812836.

The spelling of 2320315421 in words is "two billion, three hundred twenty million, three hundred fifteen thousand, four hundred twenty-one".

Divisors: 1 15187 152783 2320315421