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49281740 = 2252464087
BaseRepresentation
bin1011101111111…
…1101011001100
310102201202211122
42323333223030
5100104003430
64520140112
71135613354
oct273775314
9112652748
1049281740
1125900112
1214607638
13a2964c1
14678bb64
1544d6ee5
hex2effacc

49281740 has 12 divisors (see below), whose sum is σ = 103491696. Its totient is φ = 19712688.

The previous prime is 49281737. The next prime is 49281751. The reversal of 49281740 is 4718294.

It is a self number, because there is not a number n which added to its sum of digits gives 49281740.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1232024 + ... + 1232063.

It is an arithmetic number, because the mean of its divisors is an integer number (8624308).

Almost surely, 249281740 is an apocalyptic number.

It is an amenable number.

49281740 is an abundant number, since it is smaller than the sum of its proper divisors (54209956).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

49281740 is a wasteful number, since it uses less digits than its factorization.

49281740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2464096 (or 2464094 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 35.

The square root of 49281740 is about 7020.0954409467. The cubic root of 49281740 is about 366.6305731230.

The spelling of 49281740 in words is "forty-nine million, two hundred eighty-one thousand, seven hundred forty".

Divisors: 1 2 4 5 10 20 2464087 4928174 9856348 12320435 24640870 49281740