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2111012242 = 21055506121
BaseRepresentation
bin111110111010011…
…0111110110010010
312110010020112101121
41331310313312102
513310404342432
6545250152454
7103212210433
oct17564676622
95403215347
102111012242
1199367a819
124aab8272a
13278475391
1416051548a
15c54e0197
hex7dd37d92

2111012242 has 4 divisors (see below), whose sum is σ = 3166518366. Its totient is φ = 1055506120.

The previous prime is 2111012237. The next prime is 2111012269. The reversal of 2111012242 is 2422101112.

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., 2050187841 + 60824401 = 45279^2 + 7799^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 527753059 + ... + 527753062.

Almost surely, 22111012242 is an apocalyptic number.

2111012242 is a deficient number, since it is larger than the sum of its proper divisors (1055506124).

2111012242 is a wasteful number, since it uses less digits than its factorization.

2111012242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1055506123.

The product of its (nonzero) digits is 64, while the sum is 16.

The square root of 2111012242 is about 45945.7532531571. The cubic root of 2111012242 is about 1282.8136839084.

Adding to 2111012242 its reverse (2422101112), we get a palindrome (4533113354).

The spelling of 2111012242 in words is "two billion, one hundred eleven million, twelve thousand, two hundred forty-two".

Divisors: 1 2 1055506121 2111012242