Search a number
-
+
270136908 = 2232191073691
BaseRepresentation
bin10000000110011…
…111011001001100
3200211022101011200
4100012133121030
51023123340113
642445545500
76460061106
oct2006373114
9624271150
10270136908
11129537948
1276575290
1343c73232
1427c3c576
1518ab0873
hex1019f64c

270136908 has 72 divisors (see below), whose sum is σ = 725699520. Its totient is φ = 84486240.

The previous prime is 270136901. The next prime is 270136921. The reversal of 270136908 is 809631072.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (270136901) 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 23 ways as a sum of consecutive naturals, for example, 71343 + ... + 75033.

It is an arithmetic number, because the mean of its divisors is an integer number (10079160).

Almost surely, 2270136908 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 270136908, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (362849760).

270136908 is an abundant number, since it is smaller than the sum of its proper divisors (455562612).

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

270136908 is a wasteful number, since it uses less digits than its factorization.

270136908 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3827 (or 3822 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 270136908 is about 16435.8421749541. The cubic root of 270136908 is about 646.4396327517.

The spelling of 270136908 in words is "two hundred seventy million, one hundred thirty-six thousand, nine hundred eight".

Divisors: 1 2 3 4 6 9 12 18 19 36 38 57 76 107 114 171 214 228 321 342 428 642 684 963 1284 1926 2033 3691 3852 4066 6099 7382 8132 11073 12198 14764 18297 22146 24396 33219 36594 44292 66438 70129 73188 132876 140258 210387 280516 394937 420774 631161 789874 841548 1184811 1262322 1579748 2369622 2524644 3554433 4739244 7108866 7503803 14217732 15007606 22511409 30015212 45022818 67534227 90045636 135068454 270136908