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1230213122 = 2797786159
BaseRepresentation
bin100100101010011…
…1001000000000010
310011201212022010222
41021110321000002
510004413304442
6322023423042
742325432115
oct11124710002
93151768128
101230213122
11581472366
122a3bb4a82
13167b42478
14b955657c
15730078d2
hex49539002

1230213122 has 8 divisors (see below), whose sum is σ = 1868678400. Its totient is φ = 607320324.

The previous prime is 1230213079. The next prime is 1230213137. The reversal of 1230213122 is 2213120321.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1230213122.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3892922 + ... + 3893237.

It is an arithmetic number, because the mean of its divisors is an integer number (233584800).

Almost surely, 21230213122 is an apocalyptic number.

1230213122 is a deficient number, since it is larger than the sum of its proper divisors (638465278).

1230213122 is an equidigital number, since it uses as much as digits as its factorization.

1230213122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7786240.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 1230213122 is about 35074.3941073827. The cubic root of 1230213122 is about 1071.5031489642.

Adding to 1230213122 its reverse (2213120321), we get a palindrome (3443333443).

The spelling of 1230213122 in words is "one billion, two hundred thirty million, two hundred thirteen thousand, one hundred twenty-two".

Divisors: 1 2 79 158 7786159 15572318 615106561 1230213122