Base | Representation |
---|---|
bin | 10010101111011… |
… | …10110101101100 |
3 | 101221211101221211 |
4 | 21113232311230 |
5 | 310221403413 |
6 | 23333404204 |
7 | 3616213000 |
oct | 1127566554 |
9 | 357741854 |
10 | 157216108 |
11 | 80820875 |
12 | 44799664 |
13 | 267575aa |
14 | 16c46700 |
15 | dc0783d |
hex | 95eed6c |
157216108 has 96 divisors (see below), whose sum is σ = 348992000. Its totient is φ = 61725888.
The previous prime is 157216091. The next prime is 157216121. The reversal of 157216108 is 801612751.
It is a super-2 number, since 2×1572161082 = 49433809229335328, which contains 22 as substring.
It is a self number, because there is not a number n which added to its sum of digits gives 157216108.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 964435 + ... + 964597.
Almost surely, 2157216108 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 157216108, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (174496000).
157216108 is an abundant number, since it is smaller than the sum of its proper divisors (191775892).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
157216108 is a wasteful number, since it uses less digits than its factorization.
157216108 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 244 (or 228 counting only the distinct ones).
The product of its (nonzero) digits is 3360, while the sum is 31.
The square root of 157216108 is about 12538.5847686252. The cubic root of 157216108 is about 539.7164812557.
Adding to 157216108 its reverse (801612751), we get a palindrome (958828859).
The spelling of 157216108 in words is "one hundred fifty-seven million, two hundred sixteen thousand, one hundred eight".
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