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4128878885 = 51943461883
BaseRepresentation
bin1111011000011001…
…1011000100100101
3101122202012210001012
43312012123010211
531423443111020
61521412112005
7204213614525
oct36606330445
911582183035
104128878885
11182970a8aa
12972905605
1350a536b01
142b2501685
151927317c5
hexf619b125

4128878885 has 8 divisors (see below), whose sum is σ = 5215426080. Its totient is φ = 3129255504.

The previous prime is 4128878869. The next prime is 4128878911. The reversal of 4128878885 is 5888788214.

4128878885 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4128878885 - 24 = 4128878869 is a prime.

It is a super-3 number, since 3×41288788853 (a number of 30 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21730847 + ... + 21731036.

It is an arithmetic number, because the mean of its divisors is an integer number (651928260).

Almost surely, 24128878885 is an apocalyptic number.

It is an amenable number.

4128878885 is a deficient number, since it is larger than the sum of its proper divisors (1086547195).

4128878885 is a wasteful number, since it uses less digits than its factorization.

4128878885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43461907.

The product of its digits is 9175040, while the sum is 59.

The square root of 4128878885 is about 64256.3528765833. The cubic root of 4128878885 is about 1604.2697007174.

The spelling of 4128878885 in words is "four billion, one hundred twenty-eight million, eight hundred seventy-eight thousand, eight hundred eighty-five".

Divisors: 1 5 19 95 43461883 217309415 825775777 4128878885