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2499993 = 322291213
BaseRepresentation
bin1001100010010110011001
311201000100100
421202112121
51114444433
6125330013
730151416
oct11422631
94630310
102499993
111458311
12a06909
13696bb2
1449110d
15345b13
hex262599

2499993 has 12 divisors (see below), whose sum is σ = 3629860. Its totient is φ = 1658016.

The previous prime is 2499989. The next prime is 2499997. The reversal of 2499993 is 3999942.

It is an interprime number because it is at equal distance from previous prime (2499989) and next prime (2499997).

It can be written as a sum of positive squares in 2 ways, for example, as 1172889 + 1327104 = 1083^2 + 1152^2 .

It is not a de Polignac number, because 2499993 - 22 = 2499989 is a prime.

It is a Duffinian number.

It is a zygodrome in base 5.

It is not an unprimeable number, because it can be changed into a prime (2499997) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1455 + ... + 2667.

22499993 is an apocalyptic number.

It is an amenable number.

2499993 is a deficient number, since it is larger than the sum of its proper divisors (1129867).

2499993 is a wasteful number, since it uses less digits than its factorization.

2499993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1448 (or 1445 counting only the distinct ones).

The product of its digits is 157464, while the sum is 45.

The square root of 2499993 is about 1581.1366164883. The cubic root of 2499993 is about 135.7207541568.

The spelling of 2499993 in words is "two million, four hundred ninety-nine thousand, nine hundred ninety-three".

Divisors: 1 3 9 229 687 1213 2061 3639 10917 277777 833331 2499993