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2878055712 = 253471271249
BaseRepresentation
bin1010101110001011…
…1010010100100000
321102120120101020000
42223202322110200
521343240240322
61153330420000
7131215032660
oct25342722440
97376511200
102878055712
111247650944
12683a31600
1336b35965c
141d43421a0
1511ca073ac
hexab8ba520

2878055712 has 240 divisors, whose sum is σ = 9757440000. Its totient is φ = 815173632.

The previous prime is 2878055651. The next prime is 2878055737. The reversal of 2878055712 is 2175508782.

2878055712 is a `hidden beast` number, since 2 + 8 + 7 + 80 + 557 + 12 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 2303664 + ... + 2304912.

It is an arithmetic number, because the mean of its divisors is an integer number (40656000).

Almost surely, 22878055712 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2878055712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4878720000).

2878055712 is an abundant number, since it is smaller than the sum of its proper divisors (6879384288).

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

2878055712 is a wasteful number, since it uses less digits than its factorization.

2878055712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1405 (or 1388 counting only the distinct ones).

The product of its (nonzero) digits is 313600, while the sum is 45.

The square root of 2878055712 is about 53647.5135677321. The cubic root of 2878055712 is about 1422.4370818979.

The spelling of 2878055712 in words is "two billion, eight hundred seventy-eight million, fifty-five thousand, seven hundred twelve".