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1200213390 = 23540007113
BaseRepresentation
bin100011110001001…
…1100110110001110
310002122102011020210
41013202130312032
54424223312030
6315032423250
741512434255
oct10742346616
93078364223
101200213390
115665420a2
12295b47b26
1316186a64c
14b558779c
157057dbb0
hex4789cd8e

1200213390 has 16 divisors (see below), whose sum is σ = 2880512208. Its totient is φ = 320056896.

The previous prime is 1200213389. The next prime is 1200213397. The reversal of 1200213390 is 933120021.

It is a happy number.

1200213390 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200213397) 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, 20003527 + ... + 20003586.

It is an arithmetic number, because the mean of its divisors is an integer number (180032013).

Almost surely, 21200213390 is an apocalyptic number.

1200213390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1200213390 is an abundant number, since it is smaller than the sum of its proper divisors (1680298818).

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

1200213390 is a wasteful number, since it uses less digits than its factorization.

1200213390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40007123.

The product of its (nonzero) digits is 324, while the sum is 21.

The square root of 1200213390 is about 34644.0960338122. The cubic root of 1200213390 is about 1062.7215545360.

The spelling of 1200213390 in words is "one billion, two hundred million, two hundred thirteen thousand, three hundred ninety".

Divisors: 1 2 3 5 6 10 15 30 40007113 80014226 120021339 200035565 240042678 400071130 600106695 1200213390