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1330947072 = 21033713232
BaseRepresentation
bin100111101010100…
…1010010000000000
310102202102010011000
41033111022100000
510211210301242
6340022452000
744660602110
oct11725122000
93382363130
101330947072
11623315264
12311894000
13182982060
14c8a99040
157bca4a4c
hex4f54a400

1330947072 has 528 divisors, whose sum is σ = 5071319680. Its totient is φ = 335757312.

The previous prime is 1330947071. The next prime is 1330947089. The reversal of 1330947072 is 2707490331.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (1330947071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 57867253 + ... + 57867275.

Almost surely, 21330947072 is an apocalyptic number.

1330947072 is a gapful number since it is divisible by the number (12) 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 1330947072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2535659840).

1330947072 is an abundant number, since it is smaller than the sum of its proper divisors (3740372608).

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

1330947072 is a wasteful number, since it uses less digits than its factorization.

1330947072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95 (or 48 counting only the distinct ones).

The product of its (nonzero) digits is 31752, while the sum is 36.

The square root of 1330947072 is about 36482.1473052231. The cubic root of 1330947072 is about 1099.9854190905.

The spelling of 1330947072 in words is "one billion, three hundred thirty million, nine hundred forty-seven thousand, seventy-two".