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20422343233 = 191389274867
BaseRepresentation
bin10011000001010001…
…000011101001000001
31221201021020112020201
4103001101003221001
5313311104440413
613214253405201
71322041024165
oct230121035101
957637215221
1020422343233
11872a975816
123b5b499801
131c06040086
14dba424ca5
157e7d949dd
hex4c1443a41

20422343233 has 8 divisors (see below), whose sum is σ = 20582115840. Its totient is φ = 20263121520.

The previous prime is 20422343203. The next prime is 20422343261. The reversal of 20422343233 is 33234322402.

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 20422343233 - 221 = 20420246081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20422343203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63135 + ... + 211732.

It is an arithmetic number, because the mean of its divisors is an integer number (2572764480).

Almost surely, 220422343233 is an apocalyptic number.

It is an amenable number.

20422343233 is a deficient number, since it is larger than the sum of its proper divisors (159772607).

20422343233 is a wasteful number, since it uses less digits than its factorization.

20422343233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275447.

The product of its (nonzero) digits is 20736, while the sum is 28.

Adding to 20422343233 its reverse (33234322402), we get a palindrome (53656665635).

It can be divided in two parts, 204223 and 43233, that added together give a triangular number (247456 = T703).

The spelling of 20422343233 in words is "twenty billion, four hundred twenty-two million, three hundred forty-three thousand, two hundred thirty-three".

Divisors: 1 191 389 74299 274867 52499597 106923263 20422343233