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8672879387 = 67891638923
BaseRepresentation
bin10000001001111000…
…11010001100011011
3211101102112220220002
420010330122030123
5120230224120022
63552333523215
7424631154434
oct100474321433
924342486802
108672879387
113750683717
12182064350b
13a82a77cc3
145c3bc248b
1535b612092
hex204f1a31b

8672879387 has 16 divisors (see below), whose sum is σ = 8956840320. Its totient is φ = 8394674112.

The previous prime is 8672879381. The next prime is 8672879389. The reversal of 8672879387 is 7839782768.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 8672879387 - 212 = 8672875291 is a prime.

It is a super-2 number, since 2×86728793872 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8672879381) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 967508 + ... + 976430.

It is an arithmetic number, because the mean of its divisors is an integer number (559802520).

Almost surely, 28672879387 is an apocalyptic number.

8672879387 is a deficient number, since it is larger than the sum of its proper divisors (283960933).

8672879387 is a wasteful number, since it uses less digits than its factorization.

8672879387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9242.

The product of its digits is 56899584, while the sum is 65.

The square root of 8672879387 is about 93128.2953081393. The cubic root of 8672879387 is about 2054.5707560477.

The spelling of 8672879387 in words is "eight billion, six hundred seventy-two million, eight hundred seventy-nine thousand, three hundred eighty-seven".

Divisors: 1 67 89 163 5963 8923 10921 14507 597841 794147 971969 1454449 53207849 97448083 129445961 8672879387