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2878950816 = 253371728001
BaseRepresentation
bin1010101110011001…
…0100110110100000
321102122020212002000
42223212110312200
521344002411231
61153401524000
7131225451420
oct25346246640
97378225060
102878950816
1112481023a5
126841a3600
1336b5b0bc1
141d44d6480
1511cb326e6
hexab994da0

2878950816 has 192 divisors, whose sum is σ = 10161365760. Its totient is φ = 774144000.

The previous prime is 2878950791. The next prime is 2878950817. The reversal of 2878950816 is 6180598782.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (2878950817) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 88816 + ... + 116816.

It is an arithmetic number, because the mean of its divisors is an integer number (52923780).

Almost surely, 22878950816 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 2878950816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5080682880).

2878950816 is an abundant number, since it is smaller than the sum of its proper divisors (7282414944).

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

2878950816 is a wasteful number, since it uses less digits than its factorization.

2878950816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28044 (or 28030 counting only the distinct ones).

The product of its (nonzero) digits is 1935360, while the sum is 54.

The square root of 2878950816 is about 53655.8553747865. The cubic root of 2878950816 is about 1422.5845306476.

The spelling of 2878950816 in words is "two billion, eight hundred seventy-eight million, nine hundred fifty thousand, eight hundred sixteen".