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1213402214 = 22327971439
BaseRepresentation
bin100100001010011…
…0000110001100110
310010120020012220202
41020110300301212
54441112332324
6320223230502
742032514533
oct11024606146
93116205822
101213402214
11572a30052
1229a448432
1316450779b
14b721bd8a
15717d68ae
hex48530c66

1213402214 has 24 divisors (see below), whose sum is σ = 1906390080. Its totient is φ = 579191888.

The previous prime is 1213402199. The next prime is 1213402247. The reversal of 1213402214 is 4122043121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 842507 + ... + 843945.

It is an arithmetic number, because the mean of its divisors is an integer number (79432920).

Almost surely, 21213402214 is an apocalyptic number.

1213402214 is a deficient number, since it is larger than the sum of its proper divisors (692987866).

1213402214 is a wasteful number, since it uses less digits than its factorization.

1213402214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2284 (or 2261 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 1213402214 is about 34833.9233219573. The cubic root of 1213402214 is about 1066.6000368319.

Adding to 1213402214 its reverse (4122043121), we get a palindrome (5335445335).

The spelling of 1213402214 in words is "one billion, two hundred thirteen million, four hundred two thousand, two hundred fourteen".

Divisors: 1 2 23 46 529 797 1058 1439 1594 2878 18331 33097 36662 66194 421613 761231 843226 1146883 1522462 2293766 26378309 52756618 606701107 1213402214