Base | Representation |
---|---|
bin | 100100011111101101… |
… | …1001001000000110100 |
3 | 21111021222112211202021 |
4 | 1020333123021000310 |
5 | 2241002103200430 |
6 | 100000531522524 |
7 | 5443111452046 |
oct | 1107733110064 |
9 | 244258484667 |
10 | 78373490740 |
11 | 30268879656 |
12 | 13233159444 |
13 | 7510179bbc |
14 | 3b16b43a96 |
15 | 208a7d507a |
hex | 123f6c9034 |
78373490740 has 48 divisors (see below), whose sum is σ = 165743706240. Its totient is φ = 31128739200.
The previous prime is 78373490711. The next prime is 78373490743. The reversal of 78373490740 is 4709437387.
It is a super-2 number, since 2×783734907402 (a number of 23 digits) contains 22 as substring.
It is a Smith number, since the sum of its digits (52) coincides with the sum of the digits of its prime factors.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (78373490743) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10684114 + ... + 10691446.
It is an arithmetic number, because the mean of its divisors is an integer number (3452993880).
Almost surely, 278373490740 is an apocalyptic number.
It is an amenable number.
78373490740 is an abundant number, since it is smaller than the sum of its proper divisors (87370215500).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
78373490740 is a wasteful number, since it uses less digits than its factorization.
78373490740 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 11032 (or 11030 counting only the distinct ones).
The product of its (nonzero) digits is 3556224, while the sum is 52.
The spelling of 78373490740 in words is "seventy-eight billion, three hundred seventy-three million, four hundred ninety thousand, seven hundred forty".
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