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2472149 = 7134819
BaseRepresentation
bin1001011011100011010101
311122121011002
421123203111
51113102044
6124553045
730004301
oct11334325
94577132
102472149
1114393a9
129b2785
13687314
14484d01
1533c74e
hex25b8d5

2472149 has 4 divisors (see below), whose sum is σ = 2507040. Its totient is φ = 2437260.

The previous prime is 2472143. The next prime is 2472167. The reversal of 2472149 is 9412742.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2472149 is a prime.

It is a super-2 number, since 2×24721492 = 12223041356402, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2472143) 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, 17339 + ... + 17480.

It is an arithmetic number, because the mean of its divisors is an integer number (626760).

22472149 is an apocalyptic number.

It is an amenable number.

2472149 is a deficient number, since it is larger than the sum of its proper divisors (34891).

2472149 is an equidigital number, since it uses as much as digits as its factorization.

2472149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34890.

The product of its digits is 4032, while the sum is 29.

The square root of 2472149 is about 1572.3069038836. The cubic root of 2472149 is about 135.2150026242.

The spelling of 2472149 in words is "two million, four hundred seventy-two thousand, one hundred forty-nine".

Divisors: 1 71 34819 2472149