Search a number
-
+
133678340 = 22547142211
BaseRepresentation
bin1111111011111…
…00010100000100
3100022112120012122
413331330110010
5233210201330
621133105112
73212150525
oct775742404
9308476178
10133678340
1169504574
1238928198
1321905b13
1413a7a84c
15bb085e5
hex7f7c504

133678340 has 24 divisors (see below), whose sum is σ = 286699392. Its totient is φ = 52333280.

The previous prime is 133678309. The next prime is 133678343. The reversal of 133678340 is 43876331.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 133678340.

It is not an unprimeable number, because it can be changed into a prime (133678343) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70166 + ... + 72045.

It is an arithmetic number, because the mean of its divisors is an integer number (11945808).

Almost surely, 2133678340 is an apocalyptic number.

133678340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133678340 is an abundant number, since it is smaller than the sum of its proper divisors (153021052).

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

133678340 is a wasteful number, since it uses less digits than its factorization.

133678340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142267 (or 142265 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 35.

The square root of 133678340 is about 11561.9349591667. The cubic root of 133678340 is about 511.3132118563.

The spelling of 133678340 in words is "one hundred thirty-three million, six hundred seventy-eight thousand, three hundred forty".

Divisors: 1 2 4 5 10 20 47 94 188 235 470 940 142211 284422 568844 711055 1422110 2844220 6683917 13367834 26735668 33419585 66839170 133678340