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268620213 = 3175479629
BaseRepresentation
bin10000000000101…
…101000110110101
3200201110022122210
4100000231012311
51022231321323
642353244033
76441143211
oct2000550665
9621408583
10268620213
111286a1384
1275b63619
1343861a94
1427965941
15188b1293
hex1002d1b5

268620213 has 16 divisors (see below), whose sum is σ = 379961280. Its totient is φ = 168220416.

The previous prime is 268620211. The next prime is 268620221. The reversal of 268620213 is 312026862.

It is not a de Polignac number, because 268620213 - 21 = 268620211 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268620211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23083 + ... + 32711.

It is an arithmetic number, because the mean of its divisors is an integer number (23747580).

Almost surely, 2268620213 is an apocalyptic number.

It is an amenable number.

268620213 is a deficient number, since it is larger than the sum of its proper divisors (111341067).

268620213 is a wasteful number, since it uses less digits than its factorization.

268620213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10196.

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 268620213 is about 16389.6373663361. The cubic root of 268620213 is about 645.2275406559.

The spelling of 268620213 in words is "two hundred sixty-eight million, six hundred twenty thousand, two hundred thirteen".

Divisors: 1 3 17 51 547 1641 9299 9629 27897 28887 163693 491079 5267063 15801189 89540071 268620213