Base | Representation |
---|---|
bin | 101100000100000001… |
… | …000111000000100010 |
3 | 11112010020221122122200 |
4 | 230010001013000202 |
5 | 1233343340234340 |
6 | 33422421114030 |
7 | 3263302463406 |
oct | 540401070042 |
9 | 145106848580 |
10 | 47312039970 |
11 | 1907945a988 |
12 | 9204858916 |
13 | 45ccc10530 |
14 | 240b753106 |
15 | 136d8dc330 |
hex | b04047022 |
47312039970 has 96 divisors (see below), whose sum is σ = 132867916272. Its totient is φ = 11611385856.
The previous prime is 47312039923. The next prime is 47312039989. The reversal of 47312039970 is 7993021374.
47312039970 is a `hidden beast` number, since 4 + 73 + 120 + 399 + 70 = 666.
It can be written as a sum of positive squares in 8 ways, for example, as 1029832281 + 46282207689 = 32091^2 + 215133^2 .
It is a super-2 number, since 2×473120399702 (a number of 22 digits) contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (45).
It is a Curzon number.
It is an unprimeable number.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 334294 + ... + 454286.
Almost surely, 247312039970 is an apocalyptic number.
It is a practical number, because each smaller number is the sum of distinct divisors of 47312039970, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66433958136).
47312039970 is an abundant number, since it is smaller than the sum of its proper divisors (85555876302).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
47312039970 is a wasteful number, since it uses less digits than its factorization.
47312039970 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 120356 (or 120353 counting only the distinct ones).
The product of its (nonzero) digits is 285768, while the sum is 45.
The spelling of 47312039970 in words is "forty-seven billion, three hundred twelve million, thirty-nine thousand, nine hundred seventy".
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