Base | Representation |
---|---|
bin | 100000111010011101… |
… | …1110011111000111110 |
3 | 20202102220100201101010 |
4 | 1001310323303320332 |
5 | 2124223404002310 |
6 | 52245345500050 |
7 | 5051356150302 |
oct | 1016473637076 |
9 | 222386321333 |
10 | 70681312830 |
11 | 27a80838527 |
12 | 11847041626 |
13 | 688564303b |
14 | 35c72c7d02 |
15 | 1c8a341320 |
hex | 1074ef3e3e |
70681312830 has 64 divisors (see below), whose sum is σ = 170597959488. Its totient is φ = 18741488640.
The previous prime is 70681312829. The next prime is 70681312831. The reversal of 70681312830 is 3821318607.
It is an interprime number because it is at equal distance from previous prime (70681312829) and next prime (70681312831).
It is a Curzon number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (70681312831) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15913410 + ... + 15917850.
It is an arithmetic number, because the mean of its divisors is an integer number (2665593117).
Almost surely, 270681312830 is an apocalyptic number.
70681312830 is an abundant number, since it is smaller than the sum of its proper divisors (99916646658).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
70681312830 is a wasteful number, since it uses less digits than its factorization.
70681312830 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 7341.
The product of its (nonzero) digits is 48384, while the sum is 39.
The spelling of 70681312830 in words is "seventy billion, six hundred eighty-one million, three hundred twelve thousand, eight hundred thirty".
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