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1214240320 = 2657435107
BaseRepresentation
bin100100001011111…
…1101011001000000
310010121210210120201
41020113331121000
54441321142240
6320253214544
742042605146
oct11027753100
93117723521
101214240320
115734527a7
1229a791454
1316473c0c7
14b7399596
15718eed9a
hex485fd640

1214240320 has 56 divisors (see below), whose sum is σ = 2895868224. Its totient is φ = 484947456.

The previous prime is 1214240299. The next prime is 1214240329. The reversal of 1214240320 is 230424121.

It is not an unprimeable number, because it can be changed into a prime (1214240329) 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, 235207 + ... + 240313.

Almost surely, 21214240320 is an apocalyptic number.

1214240320 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 1214240320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1447934112).

1214240320 is an abundant number, since it is smaller than the sum of its proper divisors (1681627904).

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

1214240320 is an equidigital number, since it uses as much as digits as its factorization.

1214240320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5867 (or 5857 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 1214240320 is about 34845.9512712740. The cubic root of 1214240320 is about 1066.8455498602.

Adding to 1214240320 its reverse (230424121), we get a palindrome (1444664441).

The spelling of 1214240320 in words is "one billion, two hundred fourteen million, two hundred forty thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 32 40 64 80 160 320 743 1486 2972 3715 5107 5944 7430 10214 11888 14860 20428 23776 25535 29720 40856 47552 51070 59440 81712 102140 118880 163424 204280 237760 326848 408560 817120 1634240 3794501 7589002 15178004 18972505 30356008 37945010 60712016 75890020 121424032 151780040 242848064 303560080 607120160 1214240320