Base | Representation |
---|---|
bin | 10010000011110… |
… | …11011110110000 |
3 | 101120002000220210 |
4 | 21001323132300 |
5 | 302241010340 |
6 | 23011104120 |
7 | 3516510030 |
oct | 1101733660 |
9 | 346060823 |
10 | 151500720 |
11 | 78577808 |
12 | 428a2040 |
13 | 25505cc7 |
14 | 161998c0 |
15 | d479180 |
hex | 907b7b0 |
151500720 has 160 divisors (see below), whose sum is σ = 554250240. Its totient is φ = 33500160.
The previous prime is 151500703. The next prime is 151500721. The reversal of 151500720 is 27005151.
151500720 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a Harshad number since it is a multiple of its sum of digits (21).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (151500721) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 50626 + ... + 53534.
It is an arithmetic number, because the mean of its divisors is an integer number (3464064).
Almost surely, 2151500720 is an apocalyptic number.
151500720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 151500720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (277125120).
151500720 is an abundant number, since it is smaller than the sum of its proper divisors (402749520).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
151500720 is a wasteful number, since it uses less digits than its factorization.
151500720 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2963 (or 2957 counting only the distinct ones).
The product of its (nonzero) digits is 350, while the sum is 21.
The square root of 151500720 is about 12308.5628730571. The cubic root of 151500720 is about 533.0953556338.
Adding to 151500720 its reverse (27005151), we get a palindrome (178505871).
The spelling of 151500720 in words is "one hundred fifty-one million, five hundred thousand, seven hundred twenty".
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