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2878742160 = 243357259461
BaseRepresentation
bin1010101110010110…
…0001111010010000
321102121212020212000
42223211201322100
521343424222120
61153353234000
7131223622200
oct25345417220
97377766760
102878742160
111247a7a658
12684102900
1336b539c38
141d4480400
1511cae0990
hexab961e90

2878742160 has 480 divisors, whose sum is σ = 11755497600. Its totient is φ = 645442560.

The previous prime is 2878742137. The next prime is 2878742173. The reversal of 2878742160 is 612478782.

It is a super-2 number, since 2×28787421602 = 16574312847522931200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 6244330 + ... + 6244790.

It is an arithmetic number, because the mean of its divisors is an integer number (24490620).

Almost surely, 22878742160 is an apocalyptic number.

2878742160 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2878742160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5877748800).

2878742160 is an abundant number, since it is smaller than the sum of its proper divisors (8876755440).

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

2878742160 is a wasteful number, since it uses less digits than its factorization.

2878742160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 556 (or 537 counting only the distinct ones).

The product of its (nonzero) digits is 301056, while the sum is 45.

The square root of 2878742160 is about 53653.9109478517. The cubic root of 2878742160 is about 1422.5501618806.

The spelling of 2878742160 in words is "two billion, eight hundred seventy-eight million, seven hundred forty-two thousand, one hundred sixty".