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14270140 = 2251719472
BaseRepresentation
bin110110011011…
…111010111100
3222211222221201
4312123322330
512123121030
61225505244
7232202623
oct66337274
928758851
1014270140
118067405
124942224
132c58391
141c766ba
1513bd2ca
hexd9bebc

14270140 has 72 divisors (see below), whose sum is σ = 34125840. Its totient is φ = 4981248.

The previous prime is 14270111. The next prime is 14270147. The reversal of 14270140 is 4107241.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14270147) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 303597 + ... + 303643.

It is an arithmetic number, because the mean of its divisors is an integer number (473970).

Almost surely, 214270140 is an apocalyptic number.

14270140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 14270140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17062920).

14270140 is an abundant number, since it is smaller than the sum of its proper divisors (19855700).

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

14270140 is a wasteful number, since it uses less digits than its factorization.

14270140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139 (or 90 counting only the distinct ones).

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

The square root of 14270140 is about 3777.5838839131. The cubic root of 14270140 is about 242.5545418821.

Adding to 14270140 its reverse (4107241), we get a palindrome (18377381).

The spelling of 14270140 in words is "fourteen million, two hundred seventy thousand, one hundred forty".