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14207140 = 2254791483
BaseRepresentation
bin110110001100…
…100010100100
3222201210112101
4312030202210
512114112030
61224301444
7231521143
oct66144244
928653471
1014207140
118024042
124911884
132c357bc
141c5b75a
1513a97ca
hexd8c8a4

14207140 has 24 divisors (see below), whose sum is σ = 29917440. Its totient is φ = 5667168.

The previous prime is 14207131. The next prime is 14207143. The reversal of 14207140 is 4170241.

It is not an unprimeable number, because it can be changed into a prime (14207143) 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, 8839 + ... + 10321.

It is an arithmetic number, because the mean of its divisors is an integer number (1246560).

Almost surely, 214207140 is an apocalyptic number.

14207140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

14207140 is an abundant number, since it is smaller than the sum of its proper divisors (15710300).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

14207140 is a wasteful number, since it uses less digits than its factorization.

14207140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1971 (or 1969 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 19.

The square root of 14207140 is about 3769.2359968567. The cubic root of 14207140 is about 242.1970709919.

Adding to 14207140 its reverse (4170241), we get a palindrome (18377381).

The spelling of 14207140 in words is "fourteen million, two hundred seven thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 479 958 1483 1916 2395 2966 4790 5932 7415 9580 14830 29660 710357 1420714 2841428 3551785 7103570 14207140