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2494742 = 21247371
BaseRepresentation
bin1001100001000100010110
311200202010212
421201010112
51114312432
6125245422
730130205
oct11410426
94622125
102494742
111454378
12a03872
136946a3
1448d23c
153442b2
hex261116

2494742 has 4 divisors (see below), whose sum is σ = 3742116. Its totient is φ = 1247370.

The previous prime is 2494729. The next prime is 2494753. The reversal of 2494742 is 2474942.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2474942 = 21237471.

It is a junction number, because it is equal to n+sod(n) for n = 2494699 and 2494708.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 623684 + ... + 623687.

It is an arithmetic number, because the mean of its divisors is an integer number (935529).

22494742 is an apocalyptic number.

2494742 is a deficient number, since it is larger than the sum of its proper divisors (1247374).

2494742 is a wasteful number, since it uses less digits than its factorization.

2494742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1247373.

The product of its digits is 16128, while the sum is 32.

The square root of 2494742 is about 1579.4752293088. The cubic root of 2494742 is about 135.6256646601.

The spelling of 2494742 in words is "two million, four hundred ninety-four thousand, seven hundred forty-two".

Divisors: 1 2 1247371 2494742