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49928961 = 322077541
BaseRepresentation
bin1011111001110…
…1101100000001
310110221122122210
42332131230001
5100240211321
64542052333
71144250325
oct276355401
9113848583
1049928961
1126202405
121487a0a9
13a461c84
1468b9985
1545b3b76
hex2f9db01

49928961 has 8 divisors (see below), whose sum is σ = 66610944. Its totient is φ = 33266480.

The previous prime is 49928959. The next prime is 49928969. The reversal of 49928961 is 16982994.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 49928961 - 21 = 49928959 is a prime.

It is a super-2 number, since 2×499289612 = 4985802293079042, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 49928961.

It is not an unprimeable number, because it can be changed into a prime (49928969) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2851 + ... + 10391.

It is an arithmetic number, because the mean of its divisors is an integer number (8326368).

Almost surely, 249928961 is an apocalyptic number.

It is an amenable number.

49928961 is a deficient number, since it is larger than the sum of its proper divisors (16681983).

49928961 is a wasteful number, since it uses less digits than its factorization.

49928961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9751.

The product of its digits is 279936, while the sum is 48.

The square root of 49928961 is about 7066.0428105128. The cubic root of 49928961 is about 368.2285938936.

The spelling of 49928961 in words is "forty-nine million, nine hundred twenty-eight thousand, nine hundred sixty-one".

Divisors: 1 3 2207 6621 7541 22623 16642987 49928961