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1213030122 = 23635931793
BaseRepresentation
bin100100001001101…
…0101111011101010
310010112112022111120
41020103111323222
54441013430442
6320211240110
742026404653
oct11023257352
93115468446
101213030122
115727a6537
1229a2a9036
13164407305
14b716252a
15717614ec
hex484d5eea

1213030122 has 16 divisors (see below), whose sum is σ = 2426518080. Its totient is φ = 404267072.

The previous prime is 1213030111. The next prime is 1213030127. The reversal of 1213030122 is 2210303121.

It is not an unprimeable number, because it can be changed into a prime (1213030127) 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, 22258 + ... + 54050.

It is an arithmetic number, because the mean of its divisors is an integer number (151657380).

Almost surely, 21213030122 is an apocalyptic number.

1213030122 is an abundant number, since it is smaller than the sum of its proper divisors (1213487958).

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

1213030122 is a wasteful number, since it uses less digits than its factorization.

1213030122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38157.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 1213030122 is about 34828.5819694113. The cubic root of 1213030122 is about 1066.4910007375.

Adding to 1213030122 its reverse (2210303121), we get a palindrome (3423333243).

The spelling of 1213030122 in words is "one billion, two hundred thirteen million, thirty thousand, one hundred twenty-two".

Divisors: 1 2 3 6 6359 12718 19077 31793 38154 63586 95379 190758 202171687 404343374 606515061 1213030122