Search a number
-
+
13858970 = 255379331
BaseRepresentation
bin110100110111…
…100010011010
3222002002221012
4310313202122
512021441340
61213013522
7225541106
oct64674232
928062835
1013858970
1179064a4
1247842a2
132b43198
141baa906
15133b565
hexd3789a

13858970 has 32 divisors (see below), whose sum is σ = 25816320. Its totient is φ = 5353920.

The previous prime is 13858969. The next prime is 13858981. The reversal of 13858970 is 7985831.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41705 + ... + 42035.

It is an arithmetic number, because the mean of its divisors is an integer number (806760).

Almost surely, 213858970 is an apocalyptic number.

13858970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13858970 is a deficient number, since it is larger than the sum of its proper divisors (11957350).

13858970 is a wasteful number, since it uses less digits than its factorization.

13858970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 470.

The product of its (nonzero) digits is 60480, while the sum is 41.

The square root of 13858970 is about 3722.7637582850. The cubic root of 13858970 is about 240.2022022800.

The spelling of 13858970 in words is "thirteen million, eight hundred fifty-eight thousand, nine hundred seventy".

Divisors: 1 2 5 10 53 79 106 158 265 331 395 530 662 790 1655 3310 4187 8374 17543 20935 26149 35086 41870 52298 87715 130745 175430 261490 1385897 2771794 6929485 13858970