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20072214 = 2322574339
BaseRepresentation
bin100110010010…
…0011100010110
31101202202220100
41030210130112
520114302324
61554114530
7332416401
oct114443426
941682810
1020072214
111036a608
12687ba46
13420a266
142946d38
151b674c9
hex1324716

20072214 has 24 divisors (see below), whose sum is σ = 43669080. Its totient is φ = 6663168.

The previous prime is 20072209. The next prime is 20072267. The reversal of 20072214 is 41227002.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2457 + ... + 6795.

It is an arithmetic number, because the mean of its divisors is an integer number (1819545).

Almost surely, 220072214 is an apocalyptic number.

20072214 is an abundant number, since it is smaller than the sum of its proper divisors (23596866).

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

20072214 is a wasteful number, since it uses less digits than its factorization.

20072214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4604 (or 4601 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 18.

The square root of 20072214 is about 4480.2024507828. The cubic root of 20072214 is about 271.7680674995.

Adding to 20072214 its reverse (41227002), we get a palindrome (61299216).

The spelling of 20072214 in words is "twenty million, seventy-two thousand, two hundred fourteen".

Divisors: 1 2 3 6 9 18 257 514 771 1542 2313 4339 4626 8678 13017 26034 39051 78102 1115123 2230246 3345369 6690738 10036107 20072214