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82678135 = 5109151703
BaseRepresentation
bin1001110110110…
…01000101110111
312202120111002011
410323121011313
5132131200020
612112025051
72022516061
oct473310567
9182514064
1082678135
1142740341
1223832187
131418a397
14ada2731
1573d235a
hex4ed9177

82678135 has 8 divisors (see below), whose sum is σ = 100124640. Its totient is φ = 65535264.

The previous prime is 82678133. The next prime is 82678153. The reversal of 82678135 is 53187628.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 82678135 - 21 = 82678133 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82678133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75307 + ... + 76396.

It is an arithmetic number, because the mean of its divisors is an integer number (12515580).

Almost surely, 282678135 is an apocalyptic number.

82678135 is a deficient number, since it is larger than the sum of its proper divisors (17446505).

82678135 is a wasteful number, since it uses less digits than its factorization.

82678135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151817.

The product of its digits is 80640, while the sum is 40.

The square root of 82678135 is about 9092.7517837011. The cubic root of 82678135 is about 435.6424821466.

It can be divided in two parts, 826 and 78135, that added together give a square (78961 = 2812).

The spelling of 82678135 in words is "eighty-two million, six hundred seventy-eight thousand, one hundred thirty-five".

Divisors: 1 5 109 545 151703 758515 16535627 82678135