Base | Representation |
---|---|
bin | 100100011100110011… |
… | …0111001011001101110 |
3 | 21111001011221012002021 |
4 | 1020321212321121232 |
5 | 2240302113043410 |
6 | 55543124220354 |
7 | 5440515151621 |
oct | 1107146713156 |
9 | 244034835067 |
10 | 78275909230 |
11 | 3021878a182 |
12 | 1320653a6ba |
13 | 74c5ba216c |
14 | 3b07bc1db8 |
15 | 2081e5beda |
hex | 12399b966e |
78275909230 has 16 divisors (see below), whose sum is σ = 145441689984. Its totient is φ = 30300351840.
The previous prime is 78275909209. The next prime is 78275909237. The reversal of 78275909230 is 3290957287.
It is a super-2 number, since 2×782759092302 (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 (78275909237) 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, 126251157 + ... + 126251776.
It is an arithmetic number, because the mean of its divisors is an integer number (9090105624).
Almost surely, 278275909230 is an apocalyptic number.
78275909230 is a deficient number, since it is larger than the sum of its proper divisors (67165780754).
78275909230 is a wasteful number, since it uses less digits than its factorization.
78275909230 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 252502971.
The product of its (nonzero) digits is 1905120, while the sum is 52.
The spelling of 78275909230 in words is "seventy-eight billion, two hundred seventy-five million, nine hundred nine thousand, two hundred thirty".
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