Base | Representation |
---|---|
bin | 100100011110010110… |
… | …1101110001101001110 |
3 | 21111011211000012101021 |
4 | 1020330231232031032 |
5 | 2240403433430110 |
6 | 55552225304354 |
7 | 5442020161405 |
oct | 1107455561516 |
9 | 244154005337 |
10 | 78328030030 |
11 | 30245149318 |
12 | 1321ba950ba |
13 | 7503920983 |
14 | 3b10aac63c |
15 | 20868052da |
hex | 123cb6e34e |
78328030030 has 16 divisors (see below), whose sum is σ = 140996034144. Its totient is φ = 31329972000.
The previous prime is 78328029931. The next prime is 78328030031. The reversal of 78328030030 is 3003082387.
It is a happy number.
It is a super-2 number, since 2×783280300302 (a number of 23 digits) contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (78328030031) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 136384 + ... + 418636.
It is an arithmetic number, because the mean of its divisors is an integer number (8812252134).
Almost surely, 278328030030 is an apocalyptic number.
78328030030 is a deficient number, since it is larger than the sum of its proper divisors (62668004114).
78328030030 is a wasteful number, since it uses less digits than its factorization.
78328030030 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 310011.
The product of its (nonzero) digits is 24192, while the sum is 34.
The spelling of 78328030030 in words is "seventy-eight billion, three hundred twenty-eight million, thirty thousand, thirty".
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