Base | Representation |
---|---|
bin | 11100000101011000… |
… | …011001010001111010 |
3 | 2212211120001100221111 |
4 | 130011120121101322 |
5 | 443224143132104 |
6 | 21504131230534 |
7 | 2115161466643 |
oct | 340530312172 |
9 | 85746040844 |
10 | 30155052154 |
11 | 11874817007 |
12 | 5a16a4844a |
13 | 2ac7542736 |
14 | 1660c8a6ca |
15 | bb7555404 |
hex | 70561947a |
30155052154 has 4 divisors (see below), whose sum is σ = 45232578234. Its totient is φ = 15077526076.
The previous prime is 30155052143. The next prime is 30155052163. The reversal of 30155052154 is 45125055103.
It is a semiprime because it is the product of two primes.
It can be written as a sum of positive squares in only one way, i.e., 30131752225 + 23299929 = 173585^2 + 4827^2 .
It is an unprimeable number.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7538763037 + ... + 7538763040.
Almost surely, 230155052154 is an apocalyptic number.
30155052154 is a deficient number, since it is larger than the sum of its proper divisors (15077526080).
30155052154 is a wasteful number, since it uses less digits than its factorization.
30155052154 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 15077526079.
The product of its (nonzero) digits is 15000, while the sum is 31.
The spelling of 30155052154 in words is "thirty billion, one hundred fifty-five million, fifty-two thousand, one hundred fifty-four".
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