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116212015 = 543618861
BaseRepresentation
bin1101110110101…
…00000100101111
322002200011220201
412323110010233
5214222241030
615310454331
72610533353
oct673240457
9262604821
10116212015
115a664897
1232b043a7
131b0cba0a
1411611463
15a3082ca
hex6ed412f

116212015 has 16 divisors (see below), whose sum is σ = 145053216. Its totient is φ = 89308800.

The previous prime is 116212013. The next prime is 116212021. The reversal of 116212015 is 510212611.

It is not a de Polignac number, because 116212015 - 21 = 116212013 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 116211983 and 116212001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (116212013) 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, 8685 + ... + 17545.

It is an arithmetic number, because the mean of its divisors is an integer number (9065826).

Almost surely, 2116212015 is an apocalyptic number.

116212015 is a deficient number, since it is larger than the sum of its proper divisors (28841201).

116212015 is an equidigital number, since it uses as much as digits as its factorization.

116212015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8970.

The product of its (nonzero) digits is 120, while the sum is 19.

The square root of 116212015 is about 10780.1676703101. The cubic root of 116212015 is about 487.9968408265.

Adding to 116212015 its reverse (510212611), we get a palindrome (626424626).

The spelling of 116212015 in words is "one hundred sixteen million, two hundred twelve thousand, fifteen".

Divisors: 1 5 43 61 215 305 2623 8861 13115 44305 381023 540521 1905115 2702605 23242403 116212015