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14721949 = 112172421
BaseRepresentation
bin111000001010…
…001110011101
31000200221201101
4320022032131
512232100244
61243313101
7236064064
oct70121635
930627641
1014721949
118345900
124b1b791
133085c18
141d531db
15145c0d4
hexe0a39d

14721949 has 18 divisors (see below), whose sum is σ = 17230682. Its totient is φ = 12566400.

The previous prime is 14721919. The next prime is 14721961. The reversal of 14721949 is 94912741.

14721949 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 1545049 + 13176900 = 1243^2 + 3630^2 .

It is a de Polignac number, because none of the positive numbers 2k-14721949 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 (14721919) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 34759 + ... + 35179.

Almost surely, 214721949 is an apocalyptic number.

It is an amenable number.

14721949 is a deficient number, since it is larger than the sum of its proper divisors (2508733).

14721949 is a wasteful number, since it uses less digits than its factorization.

14721949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 477 (or 449 counting only the distinct ones).

The product of its digits is 18144, while the sum is 37.

The square root of 14721949 is about 3836.9192068638. The cubic root of 14721949 is about 245.0878429975.

The spelling of 14721949 in words is "fourteen million, seven hundred twenty-one thousand, nine hundred forty-nine".

Divisors: 1 11 17 121 187 289 421 2057 3179 4631 7157 34969 50941 78727 121669 865997 1338359 14721949