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49612089 = 316537363
BaseRepresentation
bin1011110101000…
…0010100111001
310110100112222210
42331100110321
5100200041324
64531205333
71141460442
oct275202471
9113315883
1049612089
112600632a
1214746849
13a380987
1468362c9
15454ed29
hex2f50539

49612089 has 4 divisors (see below), whose sum is σ = 66149456. Its totient is φ = 33074724.

The previous prime is 49612061. The next prime is 49612099. The reversal of 49612089 is 98021694.

49612089 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 49612089 - 29 = 49611577 is a prime.

It is a super-2 number, since 2×496120892 = 4922718749887842, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49612039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8268679 + ... + 8268684.

It is an arithmetic number, because the mean of its divisors is an integer number (16537364).

Almost surely, 249612089 is an apocalyptic number.

It is an amenable number.

49612089 is a deficient number, since it is larger than the sum of its proper divisors (16537367).

49612089 is a wasteful number, since it uses less digits than its factorization.

49612089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16537366.

The product of its (nonzero) digits is 31104, while the sum is 39.

The square root of 49612089 is about 7043.5849537008. The cubic root of 49612089 is about 367.4479578303.

The spelling of 49612089 in words is "forty-nine million, six hundred twelve thousand, eighty-nine".

Divisors: 1 3 16537363 49612089