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268690229 = 19103251547
BaseRepresentation
bin10000000000111…
…110001100110101
3200201120212200222
4100000332030311
51022241041404
642354544125
76441554303
oct2000761465
9621525628
10268690229
11128739a45
1275b98045
1343887902
1427983273
15188c6dbe
hex1003e335

268690229 has 16 divisors (see below), whose sum is σ = 287239680. Its totient is φ = 250614000.

The previous prime is 268690223. The next prime is 268690283. The reversal of 268690229 is 922096862.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 268690229 - 28 = 268689973 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 268690229.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268690223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 490934 + ... + 491480.

It is an arithmetic number, because the mean of its divisors is an integer number (17952480).

Almost surely, 2268690229 is an apocalyptic number.

It is an amenable number.

268690229 is a deficient number, since it is larger than the sum of its proper divisors (18549451).

268690229 is a wasteful number, since it uses less digits than its factorization.

268690229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 920.

The product of its (nonzero) digits is 186624, while the sum is 44.

The square root of 268690229 is about 16391.7732109739. The cubic root of 268690229 is about 645.2835954187.

The spelling of 268690229 in words is "two hundred sixty-eight million, six hundred ninety thousand, two hundred twenty-nine".

Divisors: 1 19 103 251 547 1957 4769 10393 25853 56341 137297 491207 1070479 2608643 14141591 268690229