Base | Representation |
---|---|
bin | 10010000001100… |
… | …10011011111010 |
3 | 101112111211111200 |
4 | 21000302123322 |
5 | 302201422110 |
6 | 23000435030 |
7 | 3514122534 |
oct | 1100623372 |
9 | 345454450 |
10 | 151201530 |
11 | 78392a47 |
12 | 42778a76 |
13 | 2542ca7c |
14 | 1611c854 |
15 | d41a6c0 |
hex | 90326fa |
151201530 has 48 divisors (see below), whose sum is σ = 396756360. Its totient is φ = 39947904.
The previous prime is 151201511. The next prime is 151201541. The reversal of 151201530 is 35102151.
151201530 is a `hidden beast` number, since 1 + 512 + 0 + 153 + 0 = 666.
It can be written as a sum of positive squares in 4 ways, for example, as 147549609 + 3651921 = 12147^2 + 1911^2 .
It is a Harshad number since it is a multiple of its sum of digits (18).
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2104 + ... + 17516.
Almost surely, 2151201530 is an apocalyptic number.
151201530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is a practical number, because each smaller number is the sum of distinct divisors of 151201530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (198378180).
151201530 is an abundant number, since it is smaller than the sum of its proper divisors (245554830).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
151201530 is a wasteful number, since it uses less digits than its factorization.
151201530 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 15535 (or 15532 counting only the distinct ones).
The product of its (nonzero) digits is 150, while the sum is 18.
The square root of 151201530 is about 12296.4031326238. The cubic root of 151201530 is about 532.7441979881.
Adding to 151201530 its reverse (35102151), we get a palindrome (186303681).
The spelling of 151201530 in words is "one hundred fifty-one million, two hundred one thousand, five hundred thirty".
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