Base | Representation |
---|---|
bin | 10010101111111… |
… | …00011111001111 |
3 | 101221221020122110 |
4 | 21113330133033 |
5 | 310230201030 |
6 | 23334515103 |
7 | 3616534665 |
oct | 1127743717 |
9 | 357836573 |
10 | 157272015 |
11 | 8085987a |
12 | 44805a93 |
13 | 26776b84 |
14 | 16c5cc35 |
15 | dc191b0 |
hex | 95fc7cf |
157272015 has 64 divisors (see below), whose sum is σ = 278415360. Its totient is φ = 75479040.
The previous prime is 157272007. The next prime is 157272019. The reversal of 157272015 is 510272751.
It is not a de Polignac number, because 157272015 - 23 = 157272007 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (157272019) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 745260 + ... + 745470.
It is an arithmetic number, because the mean of its divisors is an integer number (4350240).
Almost surely, 2157272015 is an apocalyptic number.
157272015 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
157272015 is a deficient number, since it is larger than the sum of its proper divisors (121143345).
157272015 is a wasteful number, since it uses less digits than its factorization.
157272015 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 352.
The product of its (nonzero) digits is 4900, while the sum is 30.
The square root of 157272015 is about 12540.8139687980. The cubic root of 157272015 is about 539.7804491569.
The spelling of 157272015 in words is "one hundred fifty-seven million, two hundred seventy-two thousand, fifteen".
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