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2507013 = 32278557
BaseRepresentation
bin1001100100000100000101
311201100222100
421210010011
51120211023
6125422313
730211035
oct11440405
94640870
102507013
111462613
12a0a999
1369a152
144938c5
15347c43
hex264105

2507013 has 6 divisors (see below), whose sum is σ = 3621254. Its totient is φ = 1671336.

The previous prime is 2507003. The next prime is 2507017. The reversal of 2507013 is 3107052.

It can be written as a sum of positive squares in only one way, i.e., 2259009 + 248004 = 1503^2 + 498^2 .

It is not a de Polignac number, because 2507013 - 24 = 2506997 is a prime.

It is a super-2 number, since 2×25070132 = 12570228364338, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2507017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 139270 + ... + 139287.

22507013 is an apocalyptic number.

It is an amenable number.

2507013 is a deficient number, since it is larger than the sum of its proper divisors (1114241).

2507013 is a wasteful number, since it uses less digits than its factorization.

2507013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278563 (or 278560 counting only the distinct ones).

The product of its (nonzero) digits is 210, while the sum is 18.

The square root of 2507013 is about 1583.3549823081. The cubic root of 2507013 is about 135.8476704185.

The spelling of 2507013 in words is "two million, five hundred seven thousand, thirteen".

Divisors: 1 3 9 278557 835671 2507013