Base | Representation |
---|---|
bin | 1000010110001… |
… | …11101100011001 |
3 | 11212202120211001 |
4 | 10023013230121 |
5 | 120411231321 |
6 | 10540505001 |
7 | 1510123330 |
oct | 413075431 |
9 | 155676731 |
10 | 70023961 |
11 | 36588047 |
12 | 1b54b161 |
13 | 116796c7 |
14 | 942ad17 |
15 | 6232c91 |
hex | 42c7b19 |
70023961 has 8 divisors (see below), whose sum is σ = 80324864. Its totient is φ = 59797440.
The previous prime is 70023959. The next prime is 70023997. The reversal of 70023961 is 16932007.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 70023961 - 21 = 70023959 is a prime.
It is a super-2 number, since 2×700239612 = 9806710228259042, which contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (70023931) by changing a digit.
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 7 ways as a sum of consecutive naturals, for example, 16560 + ... + 20353.
It is an arithmetic number, because the mean of its divisors is an integer number (10040608).
Almost surely, 270023961 is an apocalyptic number.
It is an amenable number.
70023961 is a deficient number, since it is larger than the sum of its proper divisors (10300903).
70023961 is a wasteful number, since it uses less digits than its factorization.
70023961 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 37191.
The product of its (nonzero) digits is 2268, while the sum is 28.
The square root of 70023961 is about 8368.0320864586. The cubic root of 70023961 is about 412.1755484817.
Adding to 70023961 its reverse (16932007), we get a palindrome (86955968).
The spelling of 70023961 in words is "seventy million, twenty-three thousand, nine hundred sixty-one".
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