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20120222323 = 71607466859
BaseRepresentation
bin10010101111010000…
…100011101001110011
31220221012202012021101
4102233100203221303
5312201234103243
613124302105231
71311412032205
oct225720435163
956835665241
1020120222323
118595382913
123a9627b217
131b8857bac6
14d8c25c775
157cb5b754d
hex4af423a73

20120222323 has 8 divisors (see below), whose sum is σ = 20437263360. Its totient is φ = 19804116360.

The previous prime is 20120222263. The next prime is 20120222329. The reversal of 20120222323 is 32322202102.

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 20120222323 - 29 = 20120221811 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20120222323.

It is not an unprimeable number, because it can be changed into a prime (20120222329) 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, 190333 + ... + 276526.

It is an arithmetic number, because the mean of its divisors is an integer number (2554657920).

Almost surely, 220120222323 is an apocalyptic number.

20120222323 is a deficient number, since it is larger than the sum of its proper divisors (317041037).

20120222323 is an equidigital number, since it uses as much as digits as its factorization.

20120222323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 467537.

The product of its (nonzero) digits is 576, while the sum is 19.

Adding to 20120222323 its reverse (32322202102), we get a palindrome (52442424425).

The spelling of 20120222323 in words is "twenty billion, one hundred twenty million, two hundred twenty-two thousand, three hundred twenty-three".

Divisors: 1 71 607 43097 466859 33146989 283383413 20120222323