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1213225314 = 23728886317
BaseRepresentation
bin100100001010000…
…0101100101100010
310010112220020020220
41020110011211202
54441041202224
6320215343510
742031150020
oct11024054542
93115806226
101213225314
1157291a154
1229a381b96
13164475102
14b71b3710
157179e279
hex48505962

1213225314 has 16 divisors (see below), whose sum is σ = 2773086528. Its totient is φ = 346635792.

The previous prime is 1213225303. The next prime is 1213225327. The reversal of 1213225314 is 4135223121.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14443117 + ... + 14443200.

It is an arithmetic number, because the mean of its divisors is an integer number (173317908).

Almost surely, 21213225314 is an apocalyptic number.

1213225314 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1213225314 is an abundant number, since it is smaller than the sum of its proper divisors (1559861214).

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

1213225314 is a wasteful number, since it uses less digits than its factorization.

1213225314 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28886329.

The product of its digits is 1440, while the sum is 24.

The square root of 1213225314 is about 34831.3840379621. The cubic root of 1213225314 is about 1066.5482016657.

Adding to 1213225314 its reverse (4135223121), we get a palindrome (5348448435).

The spelling of 1213225314 in words is "one billion, two hundred thirteen million, two hundred twenty-five thousand, three hundred fourteen".

Divisors: 1 2 3 6 7 14 21 42 28886317 57772634 86658951 173317902 202204219 404408438 606612657 1213225314