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2315437442 = 21157718721
BaseRepresentation
bin1000101000000010…
…1100010110000010
312222100220102001022
42022000230112002
514220222444232
61021431505442
7111243615323
oct21200542602
95870812038
102315437442
11a8900546a
12547528282
132ab91b936
1417d72a44a
15d8420812
hex8a02c582

2315437442 has 4 divisors (see below), whose sum is σ = 3473156166. Its totient is φ = 1157718720.

The previous prime is 2315437441. The next prime is 2315437483. The reversal of 2315437442 is 2447345132.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1246866721 + 1068570721 = 35311^2 + 32689^2 .

It is a super-2 number, since 2×23154374422 = 10722501095631006728, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2315437441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 578859359 + ... + 578859362.

Almost surely, 22315437442 is an apocalyptic number.

2315437442 is a deficient number, since it is larger than the sum of its proper divisors (1157718724).

2315437442 is a wasteful number, since it uses less digits than its factorization.

2315437442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1157718723.

The product of its digits is 80640, while the sum is 35.

The square root of 2315437442 is about 48118.9925289381. The cubic root of 2315437442 is about 1322.9528024272.

The spelling of 2315437442 in words is "two billion, three hundred fifteen million, four hundred thirty-seven thousand, four hundred forty-two".

Divisors: 1 2 1157718721 2315437442