Base | Representation |
---|---|
bin | 10010110000101… |
… | …11000000100001 |
3 | 101222010202122122 |
4 | 21120113000201 |
5 | 310242140031 |
6 | 23341114025 |
7 | 3620466455 |
oct | 1130270041 |
9 | 358122578 |
10 | 157380641 |
11 | 80923450 |
12 | 44858915 |
13 | 267b4452 |
14 | 16c8a665 |
15 | dc3b47b |
hex | 9617021 |
157380641 has 4 divisors (see below), whose sum is σ = 171687984. Its totient is φ = 143073300.
The previous prime is 157380607. The next prime is 157380653. The reversal of 157380641 is 146083751.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.
It is a cyclic number.
It is not a de Polignac number, because 157380641 - 226 = 90271777 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (157380341) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7153655 + ... + 7153676.
It is an arithmetic number, because the mean of its divisors is an integer number (42921996).
Almost surely, 2157380641 is an apocalyptic number.
157380641 is a gapful number since it is divisible by the number (11) formed by its first and last digit.
It is an amenable number.
157380641 is a deficient number, since it is larger than the sum of its proper divisors (14307343).
157380641 is a wasteful number, since it uses less digits than its factorization.
157380641 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 14307342.
The product of its (nonzero) digits is 20160, while the sum is 35.
The square root of 157380641 is about 12545.1441203360. The cubic root of 157380641 is about 539.9046939712.
The spelling of 157380641 in words is "one hundred fifty-seven million, three hundred eighty thousand, six hundred forty-one".
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