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8102786342 = 271972729339
BaseRepresentation
bin1111000101111011…
…01011010100100110
3202220200211012020212
413202331223110212
5113043303130332
63420010455422
7404536355540
oct74275532446
922820735225
108102786342
1134888a2342
1216a1734572
139c1920c41
1456c1c2690
153265508b2
hex1e2f6b526

8102786342 has 16 divisors (see below), whose sum is σ = 13891668480. Its totient is φ = 3472328328.

The previous prime is 8102786291. The next prime is 8102786369. The reversal of 8102786342 is 2436872018.

It is a super-3 number, since 3×81027863423 (a number of 31 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 8102786342.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 261509 + ... + 290847.

It is an arithmetic number, because the mean of its divisors is an integer number (868229280).

Almost surely, 28102786342 is an apocalyptic number.

8102786342 is a deficient number, since it is larger than the sum of its proper divisors (5788882138).

8102786342 is a wasteful number, since it uses less digits than its factorization.

8102786342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49075.

The product of its (nonzero) digits is 129024, while the sum is 41.

The square root of 8102786342 is about 90015.4783467821. The cubic root of 8102786342 is about 2008.5291039880.

The spelling of 8102786342 in words is "eight billion, one hundred two million, seven hundred eighty-six thousand, three hundred forty-two".

Divisors: 1 2 7 14 19727 29339 39454 58678 138089 205373 276178 410746 578770453 1157540906 4051393171 8102786342