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2500772231 = 4813519587
BaseRepresentation
bin1001010100001110…
…1100000110000111
320110021122101120202
42111003230012013
520110144202411
61052052121115
7115654133066
oct22503540607
96407571522
102500772231
111073691211
1259960619b
1330b13caa9
1419a1b21dd
15e982e83b
hex950ec187

2500772231 has 4 divisors (see below), whose sum is σ = 2501296632. Its totient is φ = 2500247832.

The previous prime is 2500772203. The next prime is 2500772249. The reversal of 2500772231 is 1322770052.

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

It is a cyclic number.

It is not a de Polignac number, because 2500772231 - 218 = 2500510087 is a prime.

It is a super-2 number, since 2×25007722312 = 12507723502681434722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2500772194 and 2500772203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2500772251) 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, 254981 + ... + 264606.

It is an arithmetic number, because the mean of its divisors is an integer number (625324158).

Almost surely, 22500772231 is an apocalyptic number.

2500772231 is a deficient number, since it is larger than the sum of its proper divisors (524401).

2500772231 is an equidigital number, since it uses as much as digits as its factorization.

2500772231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 524400.

The product of its (nonzero) digits is 5880, while the sum is 29.

The square root of 2500772231 is about 50007.7217137514. The cubic root of 2500772231 is about 1357.3485377400.

The spelling of 2500772231 in words is "two billion, five hundred million, seven hundred seventy-two thousand, two hundred thirty-one".

Divisors: 1 4813 519587 2500772231