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1213402411 = 13421221707
BaseRepresentation
bin100100001010011…
…0000110100101011
310010120020020012001
41020110300310223
54441112334121
6320223231431
742032515234
oct11024606453
93116206161
101213402411
11572a30211
1229a448577
131645078c0
14b721c08b
15717d6991
hex48530d2b

1213402411 has 8 divisors (see below), whose sum is σ = 1309850864. Its totient is φ = 1117398240.

The previous prime is 1213402397. The next prime is 1213402429. The reversal of 1213402411 is 1142043121.

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 1213402411 - 29 = 1213401899 is a prime.

It is a super-2 number, since 2×12134024112 = 2944690822041225842, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1213402471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 105381 + ... + 116326.

It is an arithmetic number, because the mean of its divisors is an integer number (163731358).

Almost surely, 21213402411 is an apocalyptic number.

1213402411 is a deficient number, since it is larger than the sum of its proper divisors (96448453).

1213402411 is a wasteful number, since it uses less digits than its factorization.

1213402411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222141.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 1213402411 is about 34833.9261496605. The cubic root of 1213402411 is about 1066.6000945540.

Adding to 1213402411 its reverse (1142043121), we get a palindrome (2355445532).

The spelling of 1213402411 in words is "one billion, two hundred thirteen million, four hundred two thousand, four hundred eleven".

Divisors: 1 13 421 5473 221707 2882191 93338647 1213402411