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2498072857 = 7881405071
BaseRepresentation
bin1001010011100101…
…1001000100011001
320110002120020201221
42110321121010121
520104001312412
61051514212041
7115622161150
oct22471310431
96402506657
102498072857
111072108125
12598724021
1330a706227
14199aac597
15e9499b07
hex94e59119

2498072857 has 8 divisors (see below), whose sum is σ = 2858188032. Its totient is φ = 2138769600.

The previous prime is 2498072839. The next prime is 2498072867. The reversal of 2498072857 is 7582708942.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2498072857 - 219 = 2497548569 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2498072827) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 196369 + ... + 208702.

It is an arithmetic number, because the mean of its divisors is an integer number (357273504).

Almost surely, 22498072857 is an apocalyptic number.

It is an amenable number.

2498072857 is a deficient number, since it is larger than the sum of its proper divisors (360115175).

2498072857 is an equidigital number, since it uses as much as digits as its factorization.

2498072857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 405959.

The product of its (nonzero) digits is 2257920, while the sum is 52.

The square root of 2498072857 is about 49980.7248546877. The cubic root of 2498072857 is about 1356.8599805894.

The spelling of 2498072857 in words is "two billion, four hundred ninety-eight million, seventy-two thousand, eight hundred fifty-seven".

Divisors: 1 7 881 6167 405071 2835497 356867551 2498072857