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20072353 = 723124673
BaseRepresentation
bin100110010010…
…0011110100001
31101202210002111
41030210132201
520114303403
61554115321
7332416660
oct114443641
941683074
1020072353
111036a724
12687bb41
13420a342
142946dd7
151b6756d
hex13247a1

20072353 has 8 divisors (see below), whose sum is σ = 23937408. Its totient is φ = 16456704.

The previous prime is 20072333. The next prime is 20072369. The reversal of 20072353 is 35327002.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20072353 - 217 = 19941281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20072333) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 62176 + ... + 62497.

It is an arithmetic number, because the mean of its divisors is an integer number (2992176).

Almost surely, 220072353 is an apocalyptic number.

20072353 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

20072353 is a deficient number, since it is larger than the sum of its proper divisors (3865055).

20072353 is a wasteful number, since it uses less digits than its factorization.

20072353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124703.

The product of its (nonzero) digits is 1260, while the sum is 22.

The square root of 20072353 is about 4480.2179634478. The cubic root of 20072353 is about 271.7686948290.

Adding to 20072353 its reverse (35327002), we get a palindrome (55399355).

The spelling of 20072353 in words is "twenty million, seventy-two thousand, three hundred fifty-three".

Divisors: 1 7 23 161 124673 872711 2867479 20072353