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49180457 = 61213217
BaseRepresentation
bin1011101110011…
…0111100101001
310102112121220102
42323212330221
5100042233312
64514035145
71135012154
oct273467451
9112477812
1049180457
1125841007
1214578ab5
13a25c381
146762c9b
1544b6ec2
hex2ee6f29

49180457 has 6 divisors (see below), whose sum is σ = 50003694. Its totient is φ = 48370560.

The previous prime is 49180447. The next prime is 49180501. The reversal of 49180457 is 75408194.

It can be written as a sum of positive squares in 3 ways, for example, as 3225616 + 45954841 = 1796^2 + 6779^2 .

It is not a de Polignac number, because 49180457 - 210 = 49179433 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 49180457.

It is not an unprimeable number, because it can be changed into a prime (49180427) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2888 + ... + 10329.

It is an arithmetic number, because the mean of its divisors is an integer number (8333949).

Almost surely, 249180457 is an apocalyptic number.

It is an amenable number.

49180457 is a deficient number, since it is larger than the sum of its proper divisors (823237).

49180457 is an equidigital number, since it uses as much as digits as its factorization.

49180457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13339 (or 13278 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 38.

The square root of 49180457 is about 7012.8779399046. The cubic root of 49180457 is about 366.3792365421.

The spelling of 49180457 in words is "forty-nine million, one hundred eighty thousand, four hundred fifty-seven".

Divisors: 1 61 3721 13217 806237 49180457