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2402068889 = 11219851809
BaseRepresentation
bin1000111100101100…
…1010100110011001
320012101220202001102
42033023022212121
514404412201024
61034204401145
7113345151203
oct21713124631
96171822042
102402068889
1110229a5a00
125705461b5
132c386154c
1418b03b773
15e0d341ae
hex8f2ca999

2402068889 has 6 divisors (see below), whose sum is σ = 2640290730. Its totient is φ = 2183698880.

The previous prime is 2402068859. The next prime is 2402068913. The reversal of 2402068889 is 9888602042.

2402068889 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 1382352400 + 1019716489 = 37180^2 + 31933^2 .

It is a de Polignac number, because none of the positive numbers 2k-2402068889 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2402068819) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9925784 + ... + 9926025.

It is an arithmetic number, because the mean of its divisors is an integer number (440048455).

Almost surely, 22402068889 is an apocalyptic number.

It is an amenable number.

2402068889 is a deficient number, since it is larger than the sum of its proper divisors (238221841).

2402068889 is a wasteful number, since it uses less digits than its factorization.

2402068889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19851831 (or 19851820 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 47.

The square root of 2402068889 is about 49010.9058169710. The cubic root of 2402068889 is about 1339.2505070222.

The spelling of 2402068889 in words is "two billion, four hundred two million, sixty-eight thousand, eight hundred eighty-nine".

Divisors: 1 11 121 19851809 218369899 2402068889