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4078868388 = 223726936851
BaseRepresentation
bin1111001100011110…
…1001011110100100
3101112021002222112120
43303013221132210
531323142242023
61512424145540
7203035544400
oct36307513644
911467088476
104078868388
111803462211
1295a0082b0
135000769ba
142a9a04100
1518d1538e3
hexf31e97a4

4078868388 has 36 divisors (see below), whose sum is σ = 11071215792. Its totient is φ = 1165390800.

The previous prime is 4078868363. The next prime is 4078868389. The reversal of 4078868388 is 8838688704.

It is not an unprimeable number, because it can be changed into a prime (4078868389) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3467838 + ... + 3469013.

It is an arithmetic number, because the mean of its divisors is an integer number (307533772).

Almost surely, 24078868388 is an apocalyptic number.

It is an amenable number.

4078868388 is an abundant number, since it is smaller than the sum of its proper divisors (6992347404).

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

4078868388 is a wasteful number, since it uses less digits than its factorization.

4078868388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6936872 (or 6936863 counting only the distinct ones).

The product of its (nonzero) digits is 16515072, while the sum is 60.

The square root of 4078868388 is about 63866.0190398619. The cubic root of 4078868388 is about 1597.7662041531.

The spelling of 4078868388 in words is "four billion, seventy-eight million, eight hundred sixty-eight thousand, three hundred eighty-eight".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 49 84 98 147 196 294 588 6936851 13873702 20810553 27747404 41621106 48557957 83242212 97115914 145673871 194231828 291347742 339905699 582695484 679811398 1019717097 1359622796 2039434194 4078868388