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14420250 = 23253131729
BaseRepresentation
bin110111000000…
…100100011010
31000010121212100
4313000210122
512142422000
61233024230
7233366355
oct67004432
930117770
1014420250
11815a169
1249b5076
132cab7c0
141cb529c
1513eca00
hexdc091a

14420250 has 192 divisors, whose sum is σ = 45995040. Its totient is φ = 3225600.

The previous prime is 14420143. The next prime is 14420251. The reversal of 14420250 is 5202441.

It can be written as a sum of positive squares in 16 ways, for example, as 870489 + 13549761 = 933^2 + 3681^2 .

It is a super-2 number, since 2×144202502 = 415887220125000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (14420251) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 497236 + ... + 497264.

Almost surely, 214420250 is an apocalyptic number.

14420250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 14420250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22997520).

14420250 is an abundant number, since it is smaller than the sum of its proper divisors (31574790).

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

14420250 is a wasteful number, since it uses less digits than its factorization.

14420250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82 (or 69 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 14420250 is about 3797.4004266077. The cubic root of 14420250 is about 243.4020676952.

Adding to 14420250 its reverse (5202441), we get a palindrome (19622691).

The spelling of 14420250 in words is "fourteen million, four hundred twenty thousand, two hundred fifty".