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272870390 = 251323263347
BaseRepresentation
bin10000010000111…
…010101111110110
3201000110020210202
4100100322233312
51024323323030
643024320502
76522234332
oct2020725766
9630406722
10272870390
11130034621
1277473132
13446bc490
14283507c2
1518e50745
hex1043abf6

272870390 has 64 divisors (see below), whose sum is σ = 555641856. Its totient is φ = 95728512.

The previous prime is 272870371. The next prime is 272870393. The reversal of 272870390 is 93078272.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (272870393) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 786197 + ... + 786543.

It is an arithmetic number, because the mean of its divisors is an integer number (8681904).

Almost surely, 2272870390 is an apocalyptic number.

272870390 is an abundant number, since it is smaller than the sum of its proper divisors (282771466).

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

272870390 is a wasteful number, since it uses less digits than its factorization.

272870390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 653.

The product of its (nonzero) digits is 42336, while the sum is 38.

The square root of 272870390 is about 16518.7889991972. The cubic root of 272870390 is about 648.6127336325.

The spelling of 272870390 in words is "two hundred seventy-two million, eight hundred seventy thousand, three hundred ninety".

Divisors: 1 2 5 10 13 23 26 46 65 115 130 230 263 299 347 526 598 694 1315 1495 1735 2630 2990 3419 3470 4511 6049 6838 7981 9022 12098 15962 17095 22555 30245 34190 39905 45110 60490 78637 79810 91261 103753 157274 182522 207506 393185 456305 518765 786370 912610 1037530 1186393 2099003 2372786 4198006 5931965 10495015 11863930 20990030 27287039 54574078 136435195 272870390