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272008386 = 232133789353
BaseRepresentation
bin10000001101101…
…000010011000010
3200221211110100200
4100031220103002
51024113232021
642554030030
76512014236
oct2015502302
9627743320
10272008386
1112a5a5a21
1277118316
134447a010
14281a85c6
1518d30126
hex103684c2

272008386 has 96 divisors (see below), whose sum is σ = 661031280. Its totient is φ = 80289792.

The previous prime is 272008379. The next prime is 272008417. The reversal of 272008386 is 683800272.

It is a happy number.

272008386 is a `hidden beast` number, since 272 + 0 + 0 + 8 + 386 = 666.

272008386 is nontrivially palindromic in base 11.

It can be written as a sum of positive squares in 8 ways, for example, as 87890625 + 184117761 = 9375^2 + 13569^2 .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 272008386.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 770386 + ... + 770738.

Almost surely, 2272008386 is an apocalyptic number.

272008386 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 272008386, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (330515640).

272008386 is an abundant number, since it is smaller than the sum of its proper divisors (389022894).

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

272008386 is a wasteful number, since it uses less digits than its factorization.

272008386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 500 (or 497 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 272008386 is about 16492.6767384800. The cubic root of 272008386 is about 647.9290188598.

The spelling of 272008386 in words is "two hundred seventy-two million, eight thousand, three hundred eighty-six".

Divisors: 1 2 3 6 9 13 18 26 37 39 74 78 89 111 117 178 222 234 267 333 353 481 534 666 706 801 962 1059 1157 1443 1602 2118 2314 2886 3177 3293 3471 4329 4589 6354 6586 6942 8658 9178 9879 10413 13061 13767 19758 20826 26122 27534 29637 31417 39183 41301 42809 59274 62834 78366 82602 85618 94251 117549 128427 169793 188502 235098 256854 282753 339586 385281 408421 509379 565506 770562 816842 1018758 1162429 1225263 1528137 2324858 2450526 3056274 3487287 3675789 6974574 7351578 10461861 15111577 20923722 30223154 45334731 90669462 136004193 272008386