Base | Representation |
---|---|
bin | 10010000000001… |
… | …10000111101111 |
3 | 101112011121111220 |
4 | 21000012013233 |
5 | 302130120030 |
6 | 22552514423 |
7 | 3512435406 |
oct | 1100060757 |
9 | 345147456 |
10 | 151020015 |
11 | 78279633 |
12 | 426aba13 |
13 | 25398273 |
14 | 160b263d |
15 | d3d1a10 |
hex | 90061ef |
151020015 has 16 divisors (see below), whose sum is σ = 247526496. Its totient is φ = 78579200.
The previous prime is 151020013. The next prime is 151020031. The reversal of 151020015 is 510020151.
It is not a de Polignac number, because 151020015 - 21 = 151020013 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (15).
It is a junction number, because it is equal to n+sod(n) for n = 151019976 and 151020003.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (151020013) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 122166 + ... + 123395.
It is an arithmetic number, because the mean of its divisors is an integer number (15470406).
Almost surely, 2151020015 is an apocalyptic number.
151020015 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
151020015 is a deficient number, since it is larger than the sum of its proper divisors (96506481).
151020015 is a wasteful number, since it uses less digits than its factorization.
151020015 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 245610.
The product of its (nonzero) digits is 50, while the sum is 15.
The square root of 151020015 is about 12289.0200992593. The cubic root of 151020015 is about 532.5309290153.
Adding to 151020015 its reverse (510020151), we get a palindrome (661040166).
The spelling of 151020015 in words is "one hundred fifty-one million, twenty thousand, fifteen".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.071 sec. • engine limits •