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3081173388 = 223256764449
BaseRepresentation
bin1011011110100110…
…1111100110001100
321221201202211021220
42313221233212030
522302240022023
61225424123340
7136232353536
oct26751574614
97851684256
103081173388
111341273197
1271ba66550
133a1465a27
142132d6856
1513077a3e3
hexb7a6f98c

3081173388 has 12 divisors (see below), whose sum is σ = 7189404600. Its totient is φ = 1027057792.

The previous prime is 3081173387. The next prime is 3081173413. The reversal of 3081173388 is 8833711803.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (3081173387) 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 3 ways as a sum of consecutive naturals, for example, 128382213 + ... + 128382236.

It is an arithmetic number, because the mean of its divisors is an integer number (599117050).

Almost surely, 23081173388 is an apocalyptic number.

It is an amenable number.

3081173388 is an abundant number, since it is smaller than the sum of its proper divisors (4108231212).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3081173388 is a wasteful number, since it uses less digits than its factorization.

3081173388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256764456 (or 256764454 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 42.

The square root of 3081173388 is about 55508.3181874573. The cubic root of 3081173388 is about 1455.1420113866.

The spelling of 3081173388 in words is "three billion, eighty-one million, one hundred seventy-three thousand, three hundred eighty-eight".

Divisors: 1 2 3 4 6 12 256764449 513528898 770293347 1027057796 1540586694 3081173388