Search a number
-
+
231819082 = 21125141981
BaseRepresentation
bin11011101000101…
…00011101001010
3121011012121222221
431310110131022
5433321202312
635000404254
75513300245
oct1564243512
9534177887
10231819082
11109946120
126577668a
1339048271
1422b0625c
1515542207
hexdd1474a

231819082 has 16 divisors (see below), whose sum is σ = 380860704. Its totient is φ = 104950000.

The previous prime is 231819067. The next prime is 231819103. The reversal of 231819082 is 280918132.

231819082 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15469 + ... + 26512.

It is an arithmetic number, because the mean of its divisors is an integer number (23803794).

Almost surely, 2231819082 is an apocalyptic number.

231819082 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

231819082 is a deficient number, since it is larger than the sum of its proper divisors (149041622).

231819082 is a wasteful number, since it uses less digits than its factorization.

231819082 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42245.

The product of its (nonzero) digits is 6912, while the sum is 34.

The square root of 231819082 is about 15225.6061291497. The cubic root of 231819082 is about 614.3036002055.

The spelling of 231819082 in words is "two hundred thirty-one million, eight hundred nineteen thousand, eighty-two".

Divisors: 1 2 11 22 251 502 2761 5522 41981 83962 461791 923582 10537231 21074462 115909541 231819082