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14747971 = 73193173
BaseRepresentation
bin111000010000…
…100101000011
31000202021102011
4320100211003
512233413341
61244033351
7236233000
oct70204503
930667364
1014747971
118363407
124b32857
133094a14
141d5c8a7
151464b81
hexe10943

14747971 has 32 divisors (see below), whose sum is σ = 18944000. Its totient is φ = 11430720.

The previous prime is 14747951. The next prime is 14747981. The reversal of 14747971 is 17974741.

It is a happy number.

It is not a de Polignac number, because 14747971 - 213 = 14739779 is a prime.

It is a Duffinian number.

Its product of digits (49392) is a multiple of the sum of its prime factors (144).

It is not an unprimeable number, because it can be changed into a prime (14747951) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 201991 + ... + 202063.

It is an arithmetic number, because the mean of its divisors is an integer number (592000).

Almost surely, 214747971 is an apocalyptic number.

14747971 is a deficient number, since it is larger than the sum of its proper divisors (4196029).

14747971 is an equidigital number, since it uses as much as digits as its factorization.

14747971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144 (or 130 counting only the distinct ones).

The product of its digits is 49392, while the sum is 40.

The square root of 14747971 is about 3840.3087115491. The cubic root of 14747971 is about 245.2321608883.

The spelling of 14747971 in words is "fourteen million, seven hundred forty-seven thousand, nine hundred seventy-one".

Divisors: 1 7 19 31 49 73 133 217 343 511 589 931 1387 1519 2263 3577 4123 6517 9709 10633 15841 25039 28861 42997 67963 110887 202027 300979 475741 776209 2106853 14747971