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106856815 = 5131796703
BaseRepresentation
bin1100101111010…
…00000101101111
321110001212222211
412113220011233
5204323404230
614334151251
72435160622
oct627500557
9243055884
10106856815
115535511a
122b952527
13191a47b0
1410297db9
1595ab42a
hex65e816f

106856815 has 16 divisors (see below), whose sum is σ = 146216448. Its totient is φ = 74267136.

The previous prime is 106856797. The next prime is 106856833. The reversal of 106856815 is 518658601.

It is an interprime number because it is at equal distance from previous prime (106856797) and next prime (106856833).

It is a cyclic number.

It is not a de Polignac number, because 106856815 - 211 = 106854767 is a prime.

It is a super-2 number, since 2×1068568152 = 22836757823888450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47247 + ... + 49456.

It is an arithmetic number, because the mean of its divisors is an integer number (9138528).

Almost surely, 2106856815 is an apocalyptic number.

106856815 is a deficient number, since it is larger than the sum of its proper divisors (39359633).

106856815 is a wasteful number, since it uses less digits than its factorization.

106856815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96738.

The product of its (nonzero) digits is 57600, while the sum is 40.

The square root of 106856815 is about 10337.1570076109. The cubic root of 106856815 is about 474.5340805330.

The spelling of 106856815 in words is "one hundred six million, eight hundred fifty-six thousand, eight hundred fifteen".

Divisors: 1 5 13 17 65 85 221 1105 96703 483515 1257139 1643951 6285695 8219755 21371363 106856815