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49391484 = 2234115957
BaseRepresentation
bin1011110001101…
…0011101111100
310102221100101020
42330122131330
5100121011414
64522344140
71136551332
oct274323574
9112840336
1049391484
112597560a
121465b050
13a30443c
1467b9b52
1545097a9
hex2f1a77c

49391484 has 12 divisors (see below), whose sum is σ = 115246824. Its totient is φ = 16463824.

The previous prime is 49391483. The next prime is 49391491. The reversal of 49391484 is 48419394.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49391483) 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, 2057967 + ... + 2057990.

It is an arithmetic number, because the mean of its divisors is an integer number (9603902).

Almost surely, 249391484 is an apocalyptic number.

It is an amenable number.

49391484 is an abundant number, since it is smaller than the sum of its proper divisors (65855340).

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

49391484 is a wasteful number, since it uses less digits than its factorization.

49391484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4115964 (or 4115962 counting only the distinct ones).

The product of its digits is 124416, while the sum is 42.

The square root of 49391484 is about 7027.9075121974. The cubic root of 49391484 is about 366.9025174991.

The spelling of 49391484 in words is "forty-nine million, three hundred ninety-one thousand, four hundred eighty-four".

Divisors: 1 2 3 4 6 12 4115957 8231914 12347871 16463828 24695742 49391484