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49964281 = 1931412069
BaseRepresentation
bin1011111010011…
…0010011111001
310111000110002221
42332212103321
5100242324111
64542524041
71144455313
oct276462371
9114013087
1049964281
11262269a4
1214896621
13a475083
1468c87b3
1545be371
hex2fa64f9

49964281 has 16 divisors (see below), whose sum is σ = 55641600. Its totient is φ = 44668800.

The previous prime is 49964279. The next prime is 49964293. The reversal of 49964281 is 18246994.

It is a cyclic number.

It is not a de Polignac number, because 49964281 - 21 = 49964279 is a prime.

It is a super-2 number, since 2×499642812 = 4992858751693922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49964221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23115 + ... + 25183.

It is an arithmetic number, because the mean of its divisors is an integer number (3477600).

Almost surely, 249964281 is an apocalyptic number.

49964281 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

It is an amenable number.

49964281 is a deficient number, since it is larger than the sum of its proper divisors (5677319).

49964281 is a wasteful number, since it uses less digits than its factorization.

49964281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2160.

The product of its digits is 124416, while the sum is 43.

The square root of 49964281 is about 7068.5416459125. The cubic root of 49964281 is about 368.3154023516.

The spelling of 49964281 in words is "forty-nine million, nine hundred sixty-four thousand, two hundred eighty-one".

Divisors: 1 19 31 41 589 779 1271 2069 24149 39311 64139 84829 1218641 1611751 2629699 49964281