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14945681 = 89307547
BaseRepresentation
bin111001000000…
…110110010001
31001010022121202
4321000312101
512311230211
61252200545
7241015262
oct71006621
931108552
1014945681
118488a03
125009155
1331339ca
141db0969
1514a353b
hexe40d91

14945681 has 8 divisors (see below), whose sum is σ = 15190560. Its totient is φ = 14702688.

The previous prime is 14945657. The next prime is 14945717. The reversal of 14945681 is 18654941.

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 14945681 - 26 = 14945617 is a prime.

It is a super-2 number, since 2×149456812 = 446746761107522, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (14945611) 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, 27050 + ... + 27596.

It is an arithmetic number, because the mean of its divisors is an integer number (1898820).

Almost surely, 214945681 is an apocalyptic number.

It is an amenable number.

14945681 is a deficient number, since it is larger than the sum of its proper divisors (244879).

14945681 is an equidigital number, since it uses as much as digits as its factorization.

14945681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 943.

The product of its digits is 34560, while the sum is 38.

The square root of 14945681 is about 3865.9644333594. The cubic root of 14945681 is about 246.3231536463.

The spelling of 14945681 in words is "fourteen million, nine hundred forty-five thousand, six hundred eighty-one".

Divisors: 1 89 307 547 27323 48683 167929 14945681