Search a number
-
+
269870889 = 31910146877
BaseRepresentation
bin10000000101011…
…110011100101001
3200210210212021010
4100011132130221
51023041332024
642440134133
76454602411
oct2005363451
9623725233
10269870889
11129375aa2
1276467349
1343bac122
1427bad641
1518a5bb29
hex1015e729

269870889 has 16 divisors (see below), whose sum is σ = 382524480. Its totient is φ = 168753600.

The previous prime is 269870837. The next prime is 269870917. The reversal of 269870889 is 988078962.

It is not a de Polignac number, because 269870889 - 27 = 269870761 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is not an unprimeable number, because it can be changed into a prime (269870389) by changing a digit.

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, 17682 + ... + 29195.

It is an arithmetic number, because the mean of its divisors is an integer number (23907780).

Almost surely, 2269870889 is an apocalyptic number.

It is an amenable number.

269870889 is a deficient number, since it is larger than the sum of its proper divisors (112653591).

269870889 is a wasteful number, since it uses less digits than its factorization.

269870889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47000.

The product of its (nonzero) digits is 3483648, while the sum is 57.

The square root of 269870889 is about 16427.7475327569. The cubic root of 269870889 is about 646.2273679107.

The spelling of 269870889 in words is "two hundred sixty-nine million, eight hundred seventy thousand, eight hundred eighty-nine".

Divisors: 1 3 19 57 101 303 1919 5757 46877 140631 890663 2671989 4734577 14203731 89956963 269870889