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1214242386 = 237193314597
BaseRepresentation
bin100100001011111…
…1101111001010010
310010121210220102020
41020113331321102
54441321224021
6320253232310
742042614160
oct11027757122
93117726366
101214242386
11573454305
1229a792696
13164740026
14b739a230
15719007c6
hex485fde52

1214242386 has 64 divisors (see below), whose sum is σ = 2930949120. Its totient is φ = 327602880.

The previous prime is 1214242373. The next prime is 1214242417. The reversal of 1214242386 is 6832424121.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 261840 + ... + 266436.

It is an arithmetic number, because the mean of its divisors is an integer number (45796080).

Almost surely, 21214242386 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1214242386, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1465474560).

1214242386 is an abundant number, since it is smaller than the sum of its proper divisors (1716706734).

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

1214242386 is a wasteful number, since it uses less digits than its factorization.

1214242386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4959.

The product of its digits is 18432, while the sum is 33.

The square root of 1214242386 is about 34845.9809160253. The cubic root of 1214242386 is about 1066.8461549303.

The spelling of 1214242386 in words is "one billion, two hundred fourteen million, two hundred forty-two thousand, three hundred eighty-six".

Divisors: 1 2 3 6 7 14 19 21 38 42 57 114 133 266 331 399 662 798 993 1986 2317 4597 4634 6289 6951 9194 12578 13791 13902 18867 27582 32179 37734 44023 64358 87343 88046 96537 132069 174686 193074 262029 264138 524058 611401 1222802 1521607 1834203 3043214 3668406 4564821 9129642 10651249 21302498 28910533 31953747 57821066 63907494 86731599 173463198 202373731 404747462 607121193 1214242386