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2115011242 = 21723798897
BaseRepresentation
bin111111000010000…
…1000001010101010
312110101202200222201
41332010020022222
513312420324432
6545512010414
7103261204351
oct17604101252
95411680881
102115011242
11995961283
124b0390a0a
13279245656
14160c76998
15c5a2eee7
hex7e1082aa

2115011242 has 24 divisors (see below), whose sum is σ = 3461232204. Its totient is φ = 968389632.

The previous prime is 2115011231. The next prime is 2115011273. The reversal of 2115011242 is 2421105112.

It can be written as a sum of positive squares in 6 ways, for example, as 1959036121 + 155975121 = 44261^2 + 12489^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28063 + ... + 70834.

Almost surely, 22115011242 is an apocalyptic number.

2115011242 is a deficient number, since it is larger than the sum of its proper divisors (1346220962).

2115011242 is a wasteful number, since it uses less digits than its factorization.

2115011242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98970 (or 98953 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 19.

The square root of 2115011242 is about 45989.2513746419. The cubic root of 2115011242 is about 1283.6232064526.

Adding to 2115011242 its reverse (2421105112), we get a palindrome (4536116354).

The spelling of 2115011242 in words is "two billion, one hundred fifteen million, eleven thousand, two hundred forty-two".

Divisors: 1 2 17 34 37 74 289 578 629 1258 10693 21386 98897 197794 1681249 3362498 3659189 7318378 28581233 57162466 62206213 124412426 1057505621 2115011242