Search a number
-
+
13507870 = 256720161
BaseRepresentation
bin110011100001…
…110100011110
3221102021022111
4303201310132
511424222440
61201304234
7222546355
oct63416436
927367274
1013507870
117696732
12463507a
132a4c42c
141b1899c
1512bc4ea
hexce1d1e

13507870 has 16 divisors (see below), whose sum is σ = 24678288. Its totient is φ = 5322240.

The previous prime is 13507867. The next prime is 13507883. The reversal of 13507870 is 7870531.

It is a congruent 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 7 ways as a sum of consecutive naturals, for example, 9411 + ... + 10750.

It is an arithmetic number, because the mean of its divisors is an integer number (1542393).

Almost surely, 213507870 is an apocalyptic number.

13507870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13507870 is a deficient number, since it is larger than the sum of its proper divisors (11170418).

13507870 is a wasteful number, since it uses less digits than its factorization.

13507870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20235.

The product of its (nonzero) digits is 5880, while the sum is 31.

The square root of 13507870 is about 3675.3054294847. The cubic root of 13507870 is about 238.1564186080.

The spelling of 13507870 in words is "thirteen million, five hundred seven thousand, eight hundred seventy".

Divisors: 1 2 5 10 67 134 335 670 20161 40322 100805 201610 1350787 2701574 6753935 13507870