Search a number
-
+
13885388930 = 2571071853857
BaseRepresentation
bin11001110111010001…
…00011100010000010
31022211200210211202002
430323220203202002
5211414124421210
610213500024002
71001043600320
oct147350434202
938750724662
1013885388930
115985a38246
122836232002
131403950a8a
1495a1a0d10
155640444a5
hex33ba23882

13885388930 has 32 divisors (see below), whose sum is σ = 28831199616. Its totient is φ = 4716209664.

The previous prime is 13885388927. The next prime is 13885388953. The reversal of 13885388930 is 3988358831.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 919439 + ... + 934418.

It is an arithmetic number, because the mean of its divisors is an integer number (900974988).

Almost surely, 213885388930 is an apocalyptic number.

13885388930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13885388930 is an abundant number, since it is smaller than the sum of its proper divisors (14945810686).

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

13885388930 is a wasteful number, since it uses less digits than its factorization.

13885388930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1853978.

The product of its (nonzero) digits is 4976640, while the sum is 56.

The spelling of 13885388930 in words is "thirteen billion, eight hundred eighty-five million, three hundred eighty-eight thousand, nine hundred thirty".

Divisors: 1 2 5 7 10 14 35 70 107 214 535 749 1070 1498 3745 7490 1853857 3707714 9269285 12976999 18538570 25953998 64884995 129769990 198362699 396725398 991813495 1388538893 1983626990 2777077786 6942694465 13885388930