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2104130023 = 3756868379
BaseRepresentation
bin111110101101010…
…0111100111100111
312102122021212202121
41331122213213213
513302124130043
6544442450411
7103066544602
oct17532474747
95378255677
102104130023
1198a7aa036
124a8803a07
13276c05968
1415d643339
15c4ad0ded
hex7d6a79e7

2104130023 has 4 divisors (see below), whose sum is σ = 2160998440. Its totient is φ = 2047261608.

The previous prime is 2104129987. The next prime is 2104130029. The reversal of 2104130023 is 3200314012.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2104130023 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2104129979 and 2104130006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2104130029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28434153 + ... + 28434226.

It is an arithmetic number, because the mean of its divisors is an integer number (540249610).

Almost surely, 22104130023 is an apocalyptic number.

2104130023 is a deficient number, since it is larger than the sum of its proper divisors (56868417).

2104130023 is an equidigital number, since it uses as much as digits as its factorization.

2104130023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56868416.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 2104130023 is about 45870.7970608752. The cubic root of 2104130023 is about 1281.4181107101.

Adding to 2104130023 its reverse (3200314012), we get a palindrome (5304444035).

The spelling of 2104130023 in words is "two billion, one hundred four million, one hundred thirty thousand, twenty-three".

Divisors: 1 37 56868379 2104130023