Base | Representation |
---|---|
bin | 101100101011001111… |
… | …001011111111010000 |
3 | 11120211010002121111010 |
4 | 230223033023333100 |
5 | 1241220312314213 |
6 | 34012004250520 |
7 | 3315512425203 |
oct | 545317137720 |
9 | 146733077433 |
10 | 47970041808 |
11 | 19386924457 |
12 | 93690a0a40 |
13 | 46a6336730 |
14 | 2470cb793a |
15 | 13ab565ac3 |
hex | b2b3cbfd0 |
47970041808 has 160 divisors (see below), whose sum is σ = 136236280320. Its totient is φ = 14454558720.
The previous prime is 47970041807. The next prime is 47970041827. The reversal of 47970041808 is 80814007974.
It is a super-2 number, since 2×479700418082 (a number of 22 digits) contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (48).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (47970041807) 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, 9094660 + ... + 9099932.
It is an arithmetic number, because the mean of its divisors is an integer number (851476752).
Almost surely, 247970041808 is an apocalyptic number.
47970041808 is a gapful number since it is divisible by the number (48) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 47970041808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68118140160).
47970041808 is an abundant number, since it is smaller than the sum of its proper divisors (88266238512).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
47970041808 is a wasteful number, since it uses less digits than its factorization.
47970041808 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 5597 (or 5591 counting only the distinct ones).
The product of its (nonzero) digits is 451584, while the sum is 48.
The spelling of 47970041808 in words is "forty-seven billion, nine hundred seventy million, forty-one thousand, eight hundred eight".
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