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1330631472 = 24343164319
BaseRepresentation
bin100111101001111…
…1101001100110000
310102201211002020010
41033103331030300
510211120201342
6340012014520
744655116022
oct11723751460
93381732203
101330631472
1162311a135
12311761440
131828a1501
14c8a16012
157bc4129c
hex4f4fd330

1330631472 has 40 divisors (see below), whose sum is σ = 3445493760. Its totient is φ = 442507840.

The previous prime is 1330631453. The next prime is 1330631501. The reversal of 1330631472 is 2741360331.

It is a super-2 number, since 2×13306314722 = 3541160228553773568, which contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 11472 + ... + 52847.

It is an arithmetic number, because the mean of its divisors is an integer number (86137344).

Almost surely, 21330631472 is an apocalyptic number.

1330631472 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1330631472 is an abundant number, since it is smaller than the sum of its proper divisors (2114862288).

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

1330631472 is a wasteful number, since it uses less digits than its factorization.

1330631472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64761 (or 64755 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 30.

The square root of 1330631472 is about 36477.8216454875. The cubic root of 1330631472 is about 1099.8984677636.

The spelling of 1330631472 in words is "one billion, three hundred thirty million, six hundred thirty-one thousand, four hundred seventy-two".

Divisors: 1 2 3 4 6 8 12 16 24 48 431 862 1293 1724 2586 3448 5172 6896 10344 20688 64319 128638 192957 257276 385914 514552 771828 1029104 1543656 3087312 27721489 55442978 83164467 110885956 166328934 221771912 332657868 443543824 665315736 1330631472