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269890434 = 23311454361
BaseRepresentation
bin10000000101100…
…011001110000010
3200210211212002000
4100011203032002
51023042443214
642440404430
76455013402
oct2005431602
9623755060
10269890434
11129389750
1276476716
1343bb7ca8
1427bb6802
1518a62809
hex10163382

269890434 has 32 divisors (see below), whose sum is σ = 654281280. Its totient is φ = 81784800.

The previous prime is 269890429. The next prime is 269890463. The reversal of 269890434 is 434098962.

It is a self number, because there is not a number n which added to its sum of digits gives 269890434.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 226587 + ... + 227774.

It is an arithmetic number, because the mean of its divisors is an integer number (20446290).

Almost surely, 2269890434 is an apocalyptic number.

269890434 is an abundant number, since it is smaller than the sum of its proper divisors (384390846).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

269890434 is a wasteful number, since it uses less digits than its factorization.

269890434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 454383 (or 454377 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 45.

The square root of 269890434 is about 16428.3423996458. The cubic root of 269890434 is about 646.2429682212.

The spelling of 269890434 in words is "two hundred sixty-nine million, eight hundred ninety thousand, four hundred thirty-four".

Divisors: 1 2 3 6 9 11 18 22 27 33 54 66 99 198 297 594 454361 908722 1363083 2726166 4089249 4997971 8178498 9995942 12267747 14993913 24535494 29987826 44981739 89963478 134945217 269890434