Base | Representation |
---|---|
bin | 10010100001001111… |
… | …00011100101000000 |
3 | 221122220112101012001 |
4 | 21100213203211000 |
5 | 130330233344331 |
6 | 4322325513344 |
7 | 501245460463 |
oct | 112047434500 |
9 | 27586471161 |
10 | 9942481216 |
11 | 42422a9328 |
12 | 1b15872854 |
13 | c25acb9a5 |
14 | 6a466d2da |
15 | 3d2cea561 |
hex | 2509e3940 |
9942481216 has 56 divisors (see below), whose sum is σ = 20776631040. Its totient is φ = 4711398912.
The previous prime is 9942481207. The next prime is 9942481217. The reversal of 9942481216 is 6121842499.
9942481216 = T81413 + T81414 + T81415.
It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.
It is a Harshad number since it is a multiple of its sum of digits (46).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (9942481217) by changing a digit.
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 7 ways as a sum of consecutive naturals, for example, 129465 + ... + 191431.
Almost surely, 29942481216 is an apocalyptic number.
9942481216 is the 81415-th centered triangular number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 9942481216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10388315520).
9942481216 is an abundant number, since it is smaller than the sum of its proper divisors (10834149824).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
9942481216 is a wasteful number, since it uses less digits than its factorization.
9942481216 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 62111 (or 62101 counting only the distinct ones).
The product of its digits is 248832, while the sum is 46.
The square root of 9942481216 is about 99711.9913350446. The cubic root of 9942481216 is about 2150.2960627807.
The spelling of 9942481216 in words is "nine billion, nine hundred forty-two million, four hundred eighty-one thousand, two hundred sixteen".
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