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106215232515 = 3571405171993
BaseRepresentation
bin110001011101011101…
…0111101010000000011
3101011011022200212102120
41202322322331100003
53220012044420030
6120443345015323
710450053402630
oct1427272752003
9334138625376
10106215232515
11410558032a7
1218703324543
13a029366c12
1451d8699187
152b69bda010
hex18baebd403

106215232515 has 32 divisors (see below), whose sum is σ = 194238660096. Its totient is φ = 48551404800.

The previous prime is 106215232481. The next prime is 106215232517. The reversal of 106215232515 is 515232512601.

It is not a de Polignac number, because 106215232515 - 28 = 106215232259 is a prime.

It is a super-2 number, since 2×1062152325152 (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (106215232517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1439359 + ... + 1511351.

It is an arithmetic number, because the mean of its divisors is an integer number (6069958128).

Almost surely, 2106215232515 is an apocalyptic number.

106215232515 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

106215232515 is a deficient number, since it is larger than the sum of its proper divisors (88023427581).

106215232515 is a wasteful number, since it uses less digits than its factorization.

106215232515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86059.

The product of its (nonzero) digits is 18000, while the sum is 33.

The spelling of 106215232515 in words is "one hundred six billion, two hundred fifteen million, two hundred thirty-two thousand, five hundred fifteen".

Divisors: 1 3 5 7 15 21 35 105 14051 42153 70255 71993 98357 210765 215979 295071 359965 491785 503951 1079895 1475355 1511853 2519755 7559265 1011573643 3034720929 5057868215 7081015501 15173604645 21243046503 35405077505 106215232515