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2115331142 = 21992959921
BaseRepresentation
bin111111000010101…
…0110010001000110
312110102100221210212
41332011112101012
513313011044032
6545522515422
7103264006121
oct17605262106
95412327725
102115331142
1199605a661
124b0505b72
13279328142
14160d1b3b8
15c5a94bb2
hex7e156446

2115331142 has 16 divisors (see below), whose sum is σ = 3343647600. Its totient is φ = 1000903680.

The previous prime is 2115331129. The next prime is 2115331151. The reversal of 2115331142 is 2411335112.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5342 + ... + 65262.

It is an arithmetic number, because the mean of its divisors is an integer number (208977975).

Almost surely, 22115331142 is an apocalyptic number.

2115331142 is a deficient number, since it is larger than the sum of its proper divisors (1228316458).

2115331142 is a wasteful number, since it uses less digits than its factorization.

2115331142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60871.

The product of its digits is 720, while the sum is 23.

The square root of 2115331142 is about 45992.7292297380. The cubic root of 2115331142 is about 1283.6879201138.

Adding to 2115331142 its reverse (2411335112), we get a palindrome (4526666254).

The spelling of 2115331142 in words is "two billion, one hundred fifteen million, three hundred thirty-one thousand, one hundred forty-two".

Divisors: 1 2 19 38 929 1858 17651 35302 59921 119842 1138499 2276998 55666609 111333218 1057665571 2115331142