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1009107216 = 2432131737857
BaseRepresentation
bin111100001001011…
…100000100010000
32121022210221212100
4330021130010100
54031312412331
6244044400400
734002161355
oct7411340420
92538727770
101009107216
11478684207
12241b46100
131310a8580
149803c62c
155d8ceae6
hex3c25c110

1009107216 has 240 divisors, whose sum is σ = 3311131824. Its totient is φ = 284000256.

The previous prime is 1009107181. The next prime is 1009107223. The reversal of 1009107216 is 6127019001.

It can be written as a sum of positive squares in 8 ways, for example, as 179667216 + 829440000 = 13404^2 + 28800^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1009107216.

It is an unprimeable number.

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, 1177060 + ... + 1177916.

Almost surely, 21009107216 is an apocalyptic number.

1009107216 is a gapful number since it is divisible by the number (16) 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 1009107216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1655565912).

1009107216 is an abundant number, since it is smaller than the sum of its proper divisors (2302024608).

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

1009107216 is a wasteful number, since it uses less digits than its factorization.

1009107216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 938 (or 929 counting only the distinct ones).

The product of its (nonzero) digits is 756, while the sum is 27.

The square root of 1009107216 is about 31766.4479600726. The cubic root of 1009107216 is about 1003.0265693037.

The spelling of 1009107216 in words is "one billion, nine million, one hundred seven thousand, two hundred sixteen".