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49311892 = 2271761139
BaseRepresentation
bin1011110000011…
…1000010010100
310102210022012101
42330013002110
5100110440032
64520531444
71136100310
oct274070224
9112708171
1049311892
1125920833
1214620b84
13a2a7146
146798b40
1544e0de7
hex2f07094

49311892 has 12 divisors (see below), whose sum is σ = 98623840. Its totient is φ = 21133656.

The previous prime is 49311863. The next prime is 49311893. The reversal of 49311892 is 29811394.

49311892 is an admirable number.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49311893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 880542 + ... + 880597.

Almost surely, 249311892 is an apocalyptic number.

It is an amenable number.

49311892 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

49311892 is a wasteful number, since it uses less digits than its factorization.

49311892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1761150 (or 1761148 counting only the distinct ones).

The product of its digits is 15552, while the sum is 37.

The square root of 49311892 is about 7022.2426617143. The cubic root of 49311892 is about 366.7053296237.

The spelling of 49311892 in words is "forty-nine million, three hundred eleven thousand, eight hundred ninety-two".

Divisors: 1 2 4 7 14 28 1761139 3522278 7044556 12327973 24655946 49311892