Base | Representation |
---|---|
bin | 1000010111000… |
… | …11010100110100 |
3 | 11212222100001212 |
4 | 10023203110310 |
5 | 120423342030 |
6 | 10543140552 |
7 | 1511104313 |
oct | 413432464 |
9 | 155870055 |
10 | 70137140 |
11 | 36655087 |
12 | 1b5a4758 |
13 | 116b9088 |
14 | 945a27a |
15 | 6256595 |
hex | 42e3534 |
70137140 has 24 divisors (see below), whose sum is σ = 148643880. Its totient is φ = 27796608.
The previous prime is 70137139. The next prime is 70137149. The reversal of 70137140 is 4173107.
It can be written as a sum of positive squares in 4 ways, for example, as 9265936 + 60871204 = 3044^2 + 7802^2 .
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (70137149) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13907 + ... + 18266.
It is an arithmetic number, because the mean of its divisors is an integer number (6193495).
Almost surely, 270137140 is an apocalyptic number.
It is an amenable number.
70137140 is an abundant number, since it is smaller than the sum of its proper divisors (78506740).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
70137140 is a wasteful number, since it uses less digits than its factorization.
70137140 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 32291 (or 32289 counting only the distinct ones).
The product of its (nonzero) digits is 588, while the sum is 23.
The square root of 70137140 is about 8374.7919377140. The cubic root of 70137140 is about 412.3974939662.
The spelling of 70137140 in words is "seventy million, one hundred thirty-seven thousand, one hundred forty".
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