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3871380804 = 223322615067
BaseRepresentation
bin1110011011000000…
…1001010101000100
3100222210200112002020
43212300021111010
530412033141204
61440053043140
7164636123334
oct34660112504
910883615066
103871380804
111707325775
129006264b0
1349909a595
1428a2330c4
15179d1abd9
hexe6c09544

3871380804 has 12 divisors (see below), whose sum is σ = 9033221904. Its totient is φ = 1290460264.

The previous prime is 3871380787. The next prime is 3871380809. The reversal of 3871380804 is 4080831783.

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 (3871380809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 161307522 + ... + 161307545.

It is an arithmetic number, because the mean of its divisors is an integer number (752768492).

Almost surely, 23871380804 is an apocalyptic number.

It is an amenable number.

3871380804 is an abundant number, since it is smaller than the sum of its proper divisors (5161841100).

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

3871380804 is a wasteful number, since it uses less digits than its factorization.

3871380804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 322615074 (or 322615072 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 42.

The square root of 3871380804 is about 62220.4211171863. The cubic root of 3871380804 is about 1570.2011729178.

The spelling of 3871380804 in words is "three billion, eight hundred seventy-one million, three hundred eighty thousand, eight hundred four".

Divisors: 1 2 3 4 6 12 322615067 645230134 967845201 1290460268 1935690402 3871380804