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49970641 = 73145687
BaseRepresentation
bin1011111010011…
…1110111010001
310111000202211111
42332213313101
5100243030031
64543013321
71144513000
oct276476721
9114022744
1049970641
1126230756
121489a241
13a477c36
1468cac37
1545c11b1
hex2fa7dd1

49970641 has 8 divisors (see below), whose sum is σ = 58275200. Its totient is φ = 42831684.

The previous prime is 49970629. The next prime is 49970647. The reversal of 49970641 is 14607994.

It is a happy number.

It is not a de Polignac number, because 49970641 - 213 = 49962449 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 49970594 and 49970603.

It is not an unprimeable number, because it can be changed into a prime (49970647) by changing a digit.

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, 72501 + ... + 73186.

It is an arithmetic number, because the mean of its divisors is an integer number (7284400).

Almost surely, 249970641 is an apocalyptic number.

It is an amenable number.

49970641 is a deficient number, since it is larger than the sum of its proper divisors (8304559).

49970641 is an equidigital number, since it uses as much as digits as its factorization.

49970641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145708 (or 145694 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 40.

The square root of 49970641 is about 7068.9915122314. The cubic root of 49970641 is about 368.3310294258.

The spelling of 49970641 in words is "forty-nine million, nine hundred seventy thousand, six hundred forty-one".

Divisors: 1 7 49 343 145687 1019809 7138663 49970641