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272070890 = 257131743409
BaseRepresentation
bin10000001101110…
…111100011101010
3200221221122002122
4100031313203222
51024122232030
642555231242
76512364410
oct2015674352
9627848078
10272070890
1112a638983
1277148522
134449c5c0
14281c32b0
1518d438e5
hex103778ea

272070890 has 128 divisors (see below), whose sum is σ = 654635520. Its totient is φ = 78962688.

The previous prime is 272070803. The next prime is 272070893. The reversal of 272070890 is 98070272.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 272070890.

It is not an unprimeable number, because it can be changed into a prime (272070893) 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, 665006 + ... + 665414.

It is an arithmetic number, because the mean of its divisors is an integer number (5114340).

Almost surely, 2272070890 is an apocalyptic number.

272070890 is an abundant number, since it is smaller than the sum of its proper divisors (382564630).

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

272070890 is a wasteful number, since it uses less digits than its factorization.

272070890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 496.

The product of its (nonzero) digits is 14112, while the sum is 35.

The square root of 272070890 is about 16494.5715312645. The cubic root of 272070890 is about 647.9786436212.

The spelling of 272070890 in words is "two hundred seventy-two million, seventy thousand, eight hundred ninety".

Divisors: 1 2 5 7 10 13 14 17 26 34 35 43 65 70 85 86 91 119 130 170 182 215 221 238 301 409 430 442 455 559 595 602 731 818 910 1105 1118 1190 1462 1505 1547 2045 2210 2795 2863 3010 3094 3655 3913 4090 5117 5317 5590 5726 6953 7310 7735 7826 9503 10234 10634 13906 14315 15470 17587 19006 19565 25585 26585 28630 34765 35174 37219 39130 47515 48671 51170 53170 66521 69530 74438 87935 90389 95030 97342 123109 133042 175870 180778 186095 228631 243355 246218 298979 332605 372190 451945 457262 486710 597958 615545 632723 665210 903890 1143155 1231090 1265446 1494895 1600417 2092853 2286310 2989790 3163615 3200834 3886727 4185706 6327230 7773454 8002085 10464265 16004170 19433635 20928530 27207089 38867270 54414178 136035445 272070890