Base | Representation |
---|---|
bin | 10010101110111… |
… | …11110110111001 |
3 | 101221201021210010 |
4 | 21113133312321 |
5 | 310212422440 |
6 | 23332212133 |
7 | 3615536046 |
oct | 1127376671 |
9 | 357637703 |
10 | 157154745 |
11 | 80789760 |
12 | 4476a049 |
13 | 26735697 |
14 | 16c2c1cd |
15 | dbe4580 |
hex | 95dfdb9 |
157154745 has 32 divisors (see below), whose sum is σ = 286239744. Its totient is φ = 72881600.
The previous prime is 157154743. The next prime is 157154747. The reversal of 157154745 is 547451751.
It is an interprime number because it is at equal distance from previous prime (157154743) and next prime (157154747).
It is not a de Polignac number, because 157154745 - 21 = 157154743 is a prime.
It is a super-2 number, since 2×1571547452 = 49395227752030050, which contains 22 as substring.
It is a Curzon number.
It is not an unprimeable number, because it can be changed into a prime (157154743) 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 31 ways as a sum of consecutive naturals, for example, 16911 + ... + 24500.
It is an arithmetic number, because the mean of its divisors is an integer number (8944992).
Almost surely, 2157154745 is an apocalyptic number.
157154745 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
It is an amenable number.
157154745 is a deficient number, since it is larger than the sum of its proper divisors (129084999).
157154745 is a wasteful number, since it uses less digits than its factorization.
157154745 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 41453.
The product of its digits is 98000, while the sum is 39.
The square root of 157154745 is about 12536.1375630614. The cubic root of 157154745 is about 539.6462532267.
The spelling of 157154745 in words is "one hundred fifty-seven million, one hundred fifty-four thousand, seven hundred forty-five".
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