Base | Representation |
---|---|
bin | 1101000101111001100011… |
… | …01111001111001000010111 |
3 | 10202221022000121200210020222 |
4 | 12202330301233033020113 |
5 | 12233143410031021130 |
6 | 141121535445144555 |
7 | 6031003021256204 |
oct | 642746157171027 |
9 | 122838017623228 |
10 | 28790000251415 |
11 | 919a852651937 |
12 | 328b8409bb15b |
13 | 130ab68224660 |
14 | 71762cb66cab |
15 | 34dd6227ece5 |
hex | 1a2f31bcf217 |
28790000251415 has 8 divisors (see below), whose sum is σ = 37205538786528. Its totient is φ = 21260307877920.
The previous prime is 28790000251279. The next prime is 28790000251417. The reversal of 28790000251415 is 51415200009782.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 28790000251415 - 210 = 28790000250391 is a prime.
It is a super-2 number, since 2×287900002514152 (a number of 28 digits) contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (28790000251417) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 221461540331 + ... + 221461540460.
It is an arithmetic number, because the mean of its divisors is an integer number (4650692348316).
Almost surely, 228790000251415 is an apocalyptic number.
28790000251415 is a deficient number, since it is larger than the sum of its proper divisors (8415538535113).
28790000251415 is a wasteful number, since it uses less digits than its factorization.
28790000251415 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 442923080809.
The product of its (nonzero) digits is 201600, while the sum is 44.
The spelling of 28790000251415 in words is "twenty-eight trillion, seven hundred ninety billion, two hundred fifty-one thousand, four hundred fifteen".
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