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28834612667 = 721940277691
BaseRepresentation
bin11010110110101011…
…010100010110111011
32202102112102002111022
4122312223110112323
5433023130101132
621125121453055
72040356110100
oct326653242673
982375362438
1028834612667
1111257429303
1257087a118b
132946acc2b3
141577768aa7
15b3b678e12
hex6b6ad45bb

28834612667 has 24 divisors (see below), whose sum is σ = 35321048640. Its totient is φ = 23405714640.

The previous prime is 28834612661. The next prime is 28834612669. The reversal of 28834612667 is 76621643882.

It is a happy number.

It is not a de Polignac number, because 28834612667 - 222 = 28830418363 is a prime.

It is a hoax number, since the sum of its digits (53) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (28834612661) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3745292 + ... + 3752982.

It is an arithmetic number, because the mean of its divisors is an integer number (1471710360).

Almost surely, 228834612667 is an apocalyptic number.

28834612667 is a deficient number, since it is larger than the sum of its proper divisors (6486435973).

28834612667 is a wasteful number, since it uses less digits than its factorization.

28834612667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11751 (or 11744 counting only the distinct ones).

The product of its digits is 4644864, while the sum is 53.

The spelling of 28834612667 in words is "twenty-eight billion, eight hundred thirty-four million, six hundred twelve thousand, six hundred sixty-seven".

Divisors: 1 7 19 49 133 931 4027 7691 28189 53837 76513 146129 197323 376859 535591 1022903 3749137 7160321 30971657 216801599 588461483 1517611193 4119230381 28834612667