Base | Representation |
---|---|
bin | 1000011110110101010… |
… | …1001110110110110101 |
3 | 111221010011202212002021 |
4 | 2013231111032312311 |
5 | 4341411203434322 |
6 | 150535120513141 |
7 | 13345653621220 |
oct | 2075525166665 |
9 | 457104685067 |
10 | 145715686837 |
11 | 56885785276 |
12 | 242a7a7b7b1 |
13 | 10982a93106 |
14 | 70a478c5b7 |
15 | 3bcc8e84c7 |
hex | 21ed54edb5 |
145715686837 has 16 divisors (see below), whose sum is σ = 171997765632. Its totient is φ = 120804381360.
The previous prime is 145715686819. The next prime is 145715686849. The reversal of 145715686837 is 738686517541.
It is a cyclic number.
It is not a de Polignac number, because 145715686837 - 235 = 111355948469 is a prime.
It is a super-2 number, since 2×1457156868372 (a number of 23 digits) contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (145715686037) 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, 219018 + ... + 582580.
It is an arithmetic number, because the mean of its divisors is an integer number (10749860352).
Almost surely, 2145715686837 is an apocalyptic number.
It is an amenable number.
145715686837 is a deficient number, since it is larger than the sum of its proper divisors (26282078795).
145715686837 is a wasteful number, since it uses less digits than its factorization.
145715686837 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 365448.
The product of its digits is 33868800, while the sum is 61.
The spelling of 145715686837 in words is "one hundred forty-five billion, seven hundred fifteen million, six hundred eighty-six thousand, eight hundred thirty-seven".
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