Base | Representation |
---|---|
bin | 10010000000000… |
… | …01001111011111 |
3 | 101112010121002202 |
4 | 21000001033133 |
5 | 302124000111 |
6 | 22552242115 |
7 | 3512323220 |
oct | 1100011737 |
9 | 345117082 |
10 | 151000031 |
11 | 78265616 |
12 | 426a033b |
13 | 2538c140 |
14 | 160a9247 |
15 | d3cab3b |
hex | 90013df |
151000031 has 16 divisors (see below), whose sum is σ = 188471808. Its totient is φ = 117784800.
The previous prime is 150999983. The next prime is 151000033. The reversal of 151000031 is 130000151.
It is not a de Polignac number, because 151000031 - 210 = 150999007 is a prime.
It is a super-2 number, since 2×1510000312 = 45602018724001922, which contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 150999976 and 151000021.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (151000033) 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, 5225 + ... + 18146.
It is an arithmetic number, because the mean of its divisors is an integer number (11779488).
Almost surely, 2151000031 is an apocalyptic number.
151000031 is a deficient number, since it is larger than the sum of its proper divisors (37471777).
151000031 is a wasteful number, since it uses less digits than its factorization.
151000031 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 23462.
The product of its (nonzero) digits is 15, while the sum is 11.
The square root of 151000031 is about 12288.2069888166. The cubic root of 151000031 is about 532.5074386024.
Adding to 151000031 its reverse (130000151), we get a palindrome (281000182).
The spelling of 151000031 in words is "one hundred fifty-one million, thirty-one", and thus it is an aban number.
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