Base | Representation |
---|---|
bin | 1000010110111… |
… | …11010000010110 |
3 | 11212221111012110 |
4 | 10023133100112 |
5 | 120422323340 |
6 | 10542531450 |
7 | 1511004600 |
oct | 413372026 |
9 | 155844173 |
10 | 70120470 |
11 | 36643602 |
12 | 1b596b86 |
13 | 116b1604 |
14 | 9454170 |
15 | 6251680 |
hex | 42df416 |
70120470 has 48 divisors (see below), whose sum is σ = 195769008. Its totient is φ = 16027200.
The previous prime is 70120433. The next prime is 70120511. The reversal of 70120470 is 7402107.
It is a Harshad number since it is a multiple of its sum of digits (21).
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22381 + ... + 25320.
It is an arithmetic number, because the mean of its divisors is an integer number (4078521).
Almost surely, 270120470 is an apocalyptic number.
70120470 is a gapful number since it is divisible by the number (70) formed by its first and last digit.
70120470 is an abundant number, since it is smaller than the sum of its proper divisors (125648538).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
70120470 is a wasteful number, since it uses less digits than its factorization.
70120470 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 47725 (or 47718 counting only the distinct ones).
The product of its (nonzero) digits is 392, while the sum is 21.
The square root of 70120470 is about 8373.7966299642. The cubic root of 70120470 is about 412.3648188816.
Adding to 70120470 its reverse (7402107), we get a palindrome (77522577).
The spelling of 70120470 in words is "seventy million, one hundred twenty thousand, four hundred seventy".
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