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1220003130 = 235172392163
BaseRepresentation
bin100100010110111…
…1100010100111010
310011000122120200010
41020231330110322
54444310100010
6321020522350
742142566303
oct11055742472
93130576603
101220003130
11576729455
122a06b03b6
131659a9158
14b80597aa
157218c620
hex48b7c53a

1220003130 has 32 divisors (see below), whose sum is σ = 3100244544. Its totient is φ = 306196736.

The previous prime is 1220003119. The next prime is 1220003143. The reversal of 1220003130 is 313000221.

It is a happy number.

1220003130 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1195572 + ... + 1196591.

It is an arithmetic number, because the mean of its divisors is an integer number (96882642).

Almost surely, 21220003130 is an apocalyptic number.

1220003130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1220003130 is an abundant number, since it is smaller than the sum of its proper divisors (1880241414).

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

1220003130 is a wasteful number, since it uses less digits than its factorization.

1220003130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2392190.

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 1220003130 is about 34928.5431989369. The cubic root of 1220003130 is about 1068.5306439454.

Adding to 1220003130 its reverse (313000221), we get a palindrome (1533003351).

The spelling of 1220003130 in words is "one billion, two hundred twenty million, three thousand, one hundred thirty".

Divisors: 1 2 3 5 6 10 15 17 30 34 51 85 102 170 255 510 2392163 4784326 7176489 11960815 14352978 23921630 35882445 40666771 71764890 81333542 122000313 203333855 244000626 406667710 610001565 1220003130