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270421308 = 22333137259
BaseRepresentation
bin10000000111100…
…100110100111100
3200211211211022000
4100013210310330
51023211440213
642500022300
76462354213
oct2007446474
9624754260
10270421308
11129711593
1276691990
1344042811
1427cb407a
1518b19c73
hex101e4d3c

270421308 has 144 divisors (see below), whose sum is σ = 756403200. Its totient is φ = 83436480.

The previous prime is 270421301. The next prime is 270421331. The reversal of 270421308 is 803124072.

270421308 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (270421301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4583383 + ... + 4583441.

It is an arithmetic number, because the mean of its divisors is an integer number (5252800).

Almost surely, 2270421308 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 270421308, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (378201600).

270421308 is an abundant number, since it is smaller than the sum of its proper divisors (485981892).

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

270421308 is a wasteful number, since it uses less digits than its factorization.

270421308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177 (or 132 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 270421308 is about 16444.4917221543. The cubic root of 270421308 is about 646.6664102926. Note that the first 3 decimals are identical.

The spelling of 270421308 in words is "two hundred seventy million, four hundred twenty-one thousand, three hundred eight".

Divisors: 1 2 3 4 6 9 12 18 27 31 36 37 54 59 62 74 93 108 111 118 124 148 177 186 222 236 279 333 354 372 444 531 558 666 708 837 999 1062 1116 1147 1332 1369 1593 1674 1829 1998 2124 2183 2294 2738 3186 3348 3441 3658 3996 4107 4366 4588 5476 5487 6372 6549 6882 7316 8214 8732 10323 10974 12321 13098 13764 16428 16461 19647 20646 21948 24642 26196 30969 32922 36963 39294 41292 42439 49284 49383 58941 61938 65844 67673 73926 78588 80771 84878 98766 117882 123876 127317 135346 147852 161542 169756 197532 203019 235764 242313 254634 270692 323084 381951 406038 484626 509268 609057 726939 763902 812076 969252 1145853 1218114 1453878 1527804 1827171 2180817 2291706 2436228 2503901 2907756 3654342 4361634 4583412 5007802 7308684 7511703 8723268 10015604 15023406 22535109 30046812 45070218 67605327 90140436 135210654 270421308