Base | Representation |
---|---|
bin | 1010101110001010… |
… | …1110011100000000 |
3 | 21102120110220110100 |
4 | 2223202232130000 |
5 | 21343232211130 |
6 | 1153325402400 |
7 | 131214441036 |
oct | 25342563400 |
9 | 7376426410 |
10 | 2878007040 |
11 | 1247618317 |
12 | 683a09400 |
13 | 36b34045c |
14 | 1d432c556 |
15 | 11c9e7c60 |
hex | ab8ae700 |
2878007040 has 108 divisors (see below), whose sum is σ = 9957644424. Its totient is φ = 767465472.
The previous prime is 2878007029. The next prime is 2878007117. The reversal of 2878007040 is 407008782.
It is a Harshad number since it is a multiple of its sum of digits (36).
It is a junction number, because it is equal to n+sod(n) for n = 2878006986 and 2878007004.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 113394 + ... + 136433.
Almost surely, 22878007040 is an apocalyptic number.
2878007040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
2878007040 is an abundant number, since it is smaller than the sum of its proper divisors (7079637384).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2878007040 is a wasteful number, since it uses less digits than its factorization.
2878007040 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 249854 (or 249837 counting only the distinct ones).
The product of its (nonzero) digits is 25088, while the sum is 36.
The square root of 2878007040 is about 53647.0599380805. The cubic root of 2878007040 is about 1422.4290633772.
The spelling of 2878007040 in words is "two billion, eight hundred seventy-eight million, seven thousand, forty".
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