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1230232122 = 232721394821
BaseRepresentation
bin100100101010011…
…1101101000111010
310011201220021012200
41021110331220322
510004414411442
6322024051030
742325541400
oct11124755072
93151807180
101230232122
11581485669
122a4003a76
13167b4b002
14b955d470
157300d34c
hex4953da3a

1230232122 has 36 divisors (see below), whose sum is σ = 3100689306. Its totient is φ = 351494640.

The previous prime is 1230232111. The next prime is 1230232127. The reversal of 1230232122 is 2212320321.

It can be written as a sum of positive squares in only one way, i.e., 781258401 + 448973721 = 27951^2 + 21189^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 1230232095 and 1230232104.

It is not an unprimeable number, because it can be changed into a prime (1230232127) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 696529 + ... + 698292.

Almost surely, 21230232122 is an apocalyptic number.

1230232122 is an abundant number, since it is smaller than the sum of its proper divisors (1870457184).

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

1230232122 is a wasteful number, since it uses less digits than its factorization.

1230232122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1394843 (or 1394833 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 1230232122 is about 35074.6649591981. The cubic root of 1230232122 is about 1071.5086652049.

Adding to 1230232122 its reverse (2212320321), we get a palindrome (3442552443).

The spelling of 1230232122 in words is "one billion, two hundred thirty million, two hundred thirty-two thousand, one hundred twenty-two".

Divisors: 1 2 3 6 7 9 14 18 21 42 49 63 98 126 147 294 441 882 1394821 2789642 4184463 8368926 9763747 12553389 19527494 25106778 29291241 58582482 68346229 87873723 136692458 175747446 205038687 410077374 615116061 1230232122