Base | Representation |
---|---|
bin | 10010001000100… |
… | …11011010010111 |
3 | 101121020122120100 |
4 | 21010103122113 |
5 | 302420414111 |
6 | 23032305143 |
7 | 3525011244 |
oct | 1104233227 |
9 | 347218510 |
10 | 152123031 |
11 | 78962315 |
12 | 42b421b3 |
13 | 25693338 |
14 | 162bc5cb |
15 | d54d756 |
hex | 9113697 |
152123031 has 12 divisors (see below), whose sum is σ = 223013752. Its totient is φ = 99901296.
The previous prime is 152123029. The next prime is 152123039. The reversal of 152123031 is 130321251.
It is not a de Polignac number, because 152123031 - 21 = 152123029 is a prime.
It is a super-2 number, since 2×1521230312 = 46282833121253922, which contains 22 as substring.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 152122995 and 152123013.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (152123039) by changing a digit.
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 11 ways as a sum of consecutive naturals, for example, 125536 + ... + 126741.
Almost surely, 2152123031 is an apocalyptic number.
152123031 is a deficient number, since it is larger than the sum of its proper divisors (70890721).
152123031 is a wasteful number, since it uses less digits than its factorization.
152123031 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 252350 (or 252347 counting only the distinct ones).
The product of its (nonzero) digits is 180, while the sum is 18.
The square root of 152123031 is about 12333.8165626054. The cubic root of 152123031 is about 533.8242804405.
Adding to 152123031 its reverse (130321251), we get a palindrome (282444282).
The spelling of 152123031 in words is "one hundred fifty-two million, one hundred twenty-three thousand, thirty-one".
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