Base | Representation |
---|---|
bin | 11001101000101… |
… | …10111100010110 |
3 | 112222122202221220 |
4 | 30310112330112 |
5 | 420023131204 |
6 | 33201151210 |
7 | 5220624630 |
oct | 1464267426 |
9 | 488582856 |
10 | 215052054 |
11 | 100433878 |
12 | 6002b506 |
13 | 35727549 |
14 | 207bda50 |
15 | 13d2e1d9 |
hex | cd16f16 |
215052054 has 16 divisors (see below), whose sum is σ = 491547648. Its totient is φ = 61443432.
The previous prime is 215052041. The next prime is 215052067. The reversal of 215052054 is 450250512.
It is a happy number.
It is an interprime number because it is at equal distance from previous prime (215052041) and next prime (215052067).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2560102 + ... + 2560185.
It is an arithmetic number, because the mean of its divisors is an integer number (30721728).
Almost surely, 2215052054 is an apocalyptic number.
215052054 is an abundant number, since it is smaller than the sum of its proper divisors (276495594).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
215052054 is a wasteful number, since it uses less digits than its factorization.
215052054 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 5120299.
The product of its (nonzero) digits is 2000, while the sum is 24.
The square root of 215052054 is about 14664.6532178569. The cubic root of 215052054 is about 599.1209850724.
The spelling of 215052054 in words is "two hundred fifteen million, fifty-two thousand, fifty-four".
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