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49986967 = 1914917657
BaseRepresentation
bin1011111010101…
…1110110010111
310111001121020011
42332223312113
5100244040332
64543221051
71144611412
oct276536627
9114047204
1049986967
1126241a48
12148a7787
13a4824b4
1468d2b79
1545c5e47
hex2fabd97

49986967 has 8 divisors (see below), whose sum is σ = 52974000. Its totient is φ = 47035584.

The previous prime is 49986961. The next prime is 49986971. The reversal of 49986967 is 76968994.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-49986967 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49986961) 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, 5998 + ... + 11659.

It is an arithmetic number, because the mean of its divisors is an integer number (6621750).

Almost surely, 249986967 is an apocalyptic number.

49986967 is a deficient number, since it is larger than the sum of its proper divisors (2987033).

49986967 is a wasteful number, since it uses less digits than its factorization.

49986967 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17825.

The product of its digits is 5878656, while the sum is 58.

The square root of 49986967 is about 7070.1461795355. The cubic root of 49986967 is about 368.3711377608.

The spelling of 49986967 in words is "forty-nine million, nine hundred eighty-six thousand, nine hundred sixty-seven".

Divisors: 1 19 149 2831 17657 335483 2630893 49986967