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13828395 = 3571761127
BaseRepresentation
bin110100110000…
…000100101011
3222000112222210
4310300010223
512020002040
61212220203
7225353010
oct64600453
928015883
1013828395
117895529
12476a663
132b322a9
141b9d707
151332480
hexd3012b

13828395 has 64 divisors (see below), whose sum is σ = 27426816. Its totient is φ = 5806080.

The previous prime is 13828391. The next prime is 13828411. The reversal of 13828395 is 59382831.

It is not a de Polignac number, because 13828395 - 22 = 13828391 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13828391) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 108822 + ... + 108948.

It is an arithmetic number, because the mean of its divisors is an integer number (428544).

Almost surely, 213828395 is an apocalyptic number.

13828395 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

13828395 is a deficient number, since it is larger than the sum of its proper divisors (13598421).

13828395 is a wasteful number, since it uses less digits than its factorization.

13828395 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220.

The product of its digits is 51840, while the sum is 39.

The square root of 13828395 is about 3718.6549987865. The cubic root of 13828395 is about 240.0254313329.

The spelling of 13828395 in words is "thirteen million, eight hundred twenty-eight thousand, three hundred ninety-five".

Divisors: 1 3 5 7 15 17 21 35 51 61 85 105 119 127 183 255 305 357 381 427 595 635 889 915 1037 1281 1785 1905 2135 2159 2667 3111 4445 5185 6405 6477 7259 7747 10795 13335 15113 15555 21777 23241 32385 36295 38735 45339 54229 75565 108885 116205 131699 162687 226695 271145 395097 658495 813435 921893 1975485 2765679 4609465 13828395