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1214463620 = 225432276221
BaseRepresentation
bin100100001100011…
…0011111010000100
310010122020010220002
41020120303322010
54441400313440
6320302100432
742044525156
oct11030637204
93118203802
101214463620
11573595547
1229a87a718
131647b9936
14b7416ad6
1571946115
hex48633e84

1214463620 has 48 divisors (see below), whose sum is σ = 2621602368. Its totient is φ = 472321920.

The previous prime is 1214463587. The next prime is 1214463623. The reversal of 1214463620 is 263644121.

It is not an unprimeable number, because it can be changed into a prime (1214463623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 192110 + ... + 198330.

It is an arithmetic number, because the mean of its divisors is an integer number (54616716).

Almost surely, 21214463620 is an apocalyptic number.

1214463620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1214463620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1310801184).

1214463620 is an abundant number, since it is smaller than the sum of its proper divisors (1407138748).

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

1214463620 is a wasteful number, since it uses less digits than its factorization.

1214463620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6500 (or 6498 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 1214463620 is about 34849.1552264901. The cubic root of 1214463620 is about 1066.9109438368.

The spelling of 1214463620 in words is "one billion, two hundred fourteen million, four hundred sixty-three thousand, six hundred twenty".

Divisors: 1 2 4 5 10 20 43 86 172 215 227 430 454 860 908 1135 2270 4540 6221 9761 12442 19522 24884 31105 39044 48805 62210 97610 124420 195220 267503 535006 1070012 1337515 1412167 2675030 2824334 5350060 5648668 7060835 14121670 28243340 60723181 121446362 242892724 303615905 607231810 1214463620