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49805970 = 2351660199
BaseRepresentation
bin1011110111111…
…1101010010010
310110201101221120
42331333222102
5100222242340
64535303110
71143225624
oct275775222
9113641846
1049805970
1126128a65
121481aa96
13a41acb6
146886c14
15458c4d0
hex2f7fa92

49805970 has 16 divisors (see below), whose sum is σ = 119534400. Its totient is φ = 13281584.

The previous prime is 49805969. The next prime is 49805981. The reversal of 49805970 is 7950894.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 830070 + ... + 830129.

It is an arithmetic number, because the mean of its divisors is an integer number (7470900).

Almost surely, 249805970 is an apocalyptic number.

49805970 is an abundant number, since it is smaller than the sum of its proper divisors (69728430).

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

49805970 is a wasteful number, since it uses less digits than its factorization.

49805970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1660209.

The product of its (nonzero) digits is 90720, while the sum is 42.

The square root of 49805970 is about 7057.3344826499. The cubic root of 49805970 is about 367.9259903546.

The spelling of 49805970 in words is "forty-nine million, eight hundred five thousand, nine hundred seventy".

Divisors: 1 2 3 5 6 10 15 30 1660199 3320398 4980597 8300995 9961194 16601990 24902985 49805970