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2131115242 = 24547234343
BaseRepresentation
bin111111100000110…
…0011110011101010
312111112001212112011
41333001203303222
513331031141432
6551245110134
7103545115654
oct17701436352
95445055464
102131115242
119a3a60473
124b585834a
1327c693649
141630696d4
15c7161847
hex7f063cea

2131115242 has 8 divisors (see below), whose sum is σ = 3197389536. Its totient is φ = 1065318732.

The previous prime is 2131115227. The next prime is 2131115269. The reversal of 2131115242 is 2425111312.

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

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, 108078 + ... + 126265.

It is an arithmetic number, because the mean of its divisors is an integer number (399673692).

Almost surely, 22131115242 is an apocalyptic number.

2131115242 is a deficient number, since it is larger than the sum of its proper divisors (1066274294).

2131115242 is a wasteful number, since it uses less digits than its factorization.

2131115242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238892.

The product of its digits is 480, while the sum is 22.

The square root of 2131115242 is about 46164.0037475087. The cubic root of 2131115242 is about 1286.8728698336.

Adding to 2131115242 its reverse (2425111312), we get a palindrome (4556226554).

The spelling of 2131115242 in words is "two billion, one hundred thirty-one million, one hundred fifteen thousand, two hundred forty-two".

Divisors: 1 2 4547 9094 234343 468686 1065557621 2131115242