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1220314368 = 28371319919
BaseRepresentation
bin100100010111100…
…1000010100000000
310011001020101121110
41020233020110000
54444400024433
6321031323320
742145333560
oct11057102400
93131211543
101220314368
11576921279
122a0820540
13165a87a10
14b80dada0
15721ee963
hex48bc8500

1220314368 has 288 divisors, whose sum is σ = 4212275200. Its totient is φ = 304570368.

The previous prime is 1220314357. The next prime is 1220314379. The reversal of 1220314368 is 8634130221.

It is an interprime number because it is at equal distance from previous prime (1220314357) and next prime (1220314379).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1327413 + ... + 1328331.

Almost surely, 21220314368 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1220314368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2106137600).

1220314368 is an abundant number, since it is smaller than the sum of its proper divisors (2991960832).

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

1220314368 is a wasteful number, since it uses less digits than its factorization.

1220314368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 977 (or 963 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 1220314368 is about 34932.9982681132. The cubic root of 1220314368 is about 1068.6215013800.

Adding to 1220314368 its reverse (8634130221), we get a palindrome (9854444589).

The spelling of 1220314368 in words is "one billion, two hundred twenty million, three hundred fourteen thousand, three hundred sixty-eight".