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91482049 = 175381297
BaseRepresentation
bin1010111001111…
…10011111000001
320101010202210001
411130332133001
5141404411144
613024440001
72160404341
oct534763701
9211122701
1091482049
11477038aa
1226779001
1315c506b9
14c214d21
158070bd4
hex573e7c1

91482049 has 4 divisors (see below), whose sum is σ = 96863364. Its totient is φ = 86100736.

The previous prime is 91482047. The next prime is 91482059. The reversal of 91482049 is 94028419.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 56731024 + 34751025 = 7532^2 + 5895^2 .

It is a cyclic number.

It is not a de Polignac number, because 91482049 - 21 = 91482047 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 91481999 and 91482017.

It is not an unprimeable number, because it can be changed into a prime (91482047) 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, 2690632 + ... + 2690665.

It is an arithmetic number, because the mean of its divisors is an integer number (24215841).

Almost surely, 291482049 is an apocalyptic number.

It is an amenable number.

91482049 is a deficient number, since it is larger than the sum of its proper divisors (5381315).

91482049 is a wasteful number, since it uses less digits than its factorization.

91482049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5381314.

The product of its (nonzero) digits is 20736, while the sum is 37.

The square root of 91482049 is about 9564.6248750278. The cubic root of 91482049 is about 450.5869690185.

The spelling of 91482049 in words is "ninety-one million, four hundred eighty-two thousand, forty-nine".

Divisors: 1 17 5381297 91482049