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828612087 = 3934129569
BaseRepresentation
bin110001011000111…
…001110111110111
32010202011212002120
4301120321313313
53144111041322
6214120011023
726351041452
oct6130716767
92122155076
10828612087
11395803586
121b1600a73
13102890214
147c096499
154cb29a5c
hex31639df7

828612087 has 8 divisors (see below), whose sum is σ = 1104971760. Its totient is φ = 552330240.

The previous prime is 828612067. The next prime is 828612089. The reversal of 828612087 is 780216828.

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

It is not a de Polignac number, because 828612087 - 26 = 828612023 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (828612089) 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 7 ways as a sum of consecutive naturals, for example, 13239 + ... + 42807.

It is an arithmetic number, because the mean of its divisors is an integer number (138121470).

Almost surely, 2828612087 is an apocalyptic number.

828612087 is a deficient number, since it is larger than the sum of its proper divisors (276359673).

828612087 is a wasteful number, since it uses less digits than its factorization.

828612087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38913.

The product of its (nonzero) digits is 86016, while the sum is 42.

The square root of 828612087 is about 28785.6229218685. The cubic root of 828612087 is about 939.2555169811.

It can be divided in two parts, 82861 and 2087, that added together give a palindrome (84948).

The spelling of 828612087 in words is "eight hundred twenty-eight million, six hundred twelve thousand, eighty-seven".

Divisors: 1 3 9341 28023 29569 88707 276204029 828612087