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14620144 = 2471111867
BaseRepresentation
bin110111110001…
…010111110000
31000111210001211
4313301113300
512220321034
61241205504
7235161220
oct67612760
930453054
1014620144
118286370
124a90894
13304b796
141d28080
15143bd64
hexdf15f0

14620144 has 40 divisors (see below), whose sum is σ = 35319168. Its totient is φ = 5695680.

The previous prime is 14620121. The next prime is 14620163. The reversal of 14620144 is 44102641.

It is a super-2 number, since 2×146201442 = 427497221161472, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4702 + ... + 7165.

Almost surely, 214620144 is an apocalyptic number.

14620144 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

14620144 is an abundant number, since it is smaller than the sum of its proper divisors (20699024).

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

14620144 is a wasteful number, since it uses less digits than its factorization.

14620144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11893 (or 11887 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 14620144 is about 3823.6296891828. The cubic root of 14620144 is about 244.5215931571.

Adding to 14620144 its reverse (44102641), we get a palindrome (58722785).

The spelling of 14620144 in words is "fourteen million, six hundred twenty thousand, one hundred forty-four".

Divisors: 1 2 4 7 8 11 14 16 22 28 44 56 77 88 112 154 176 308 616 1232 11867 23734 47468 83069 94936 130537 166138 189872 261074 332276 522148 664552 913759 1044296 1329104 1827518 2088592 3655036 7310072 14620144