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1230867648 = 263229312377
BaseRepresentation
bin100100101011101…
…1000110011000000
310011210002112222200
41021113120303000
510010100231043
6322045433200
742334126263
oct11127306300
93153075880
101230867648
1158187a09a
122a426b800
1316801136a
14b9686cda
15730d67d3
hex495d8cc0

1230867648 has 168 divisors, whose sum is σ = 3769034880. Its totient is φ = 383201280.

The previous prime is 1230867611. The next prime is 1230867667. The reversal of 1230867648 is 8467680321.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 516636 + ... + 519012.

Almost surely, 21230867648 is an apocalyptic number.

1230867648 is a gapful number since it is divisible by the number (18) 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 1230867648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1884517440).

1230867648 is an abundant number, since it is smaller than the sum of its proper divisors (2538167232).

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

1230867648 is a wasteful number, since it uses less digits than its factorization.

1230867648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2455 (or 2442 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 45.

The square root of 1230867648 is about 35083.7234055908. The cubic root of 1230867648 is about 1071.6931437750.

The spelling of 1230867648 in words is "one billion, two hundred thirty million, eight hundred sixty-seven thousand, six hundred forty-eight".