Search a number
-
+
133395438 = 23112021143
BaseRepresentation
bin1111111001101…
…11001111101110
3100022000012010210
413330313033232
5233122123223
621123043250
73206561661
oct774671756
9308005123
10133395438
1169330a70
1238810526
1321837117
1413a056d8
15ba9e893
hex7f373ee

133395438 has 16 divisors (see below), whose sum is σ = 291044736. Its totient is φ = 40422840.

The previous prime is 133395419. The next prime is 133395443. The reversal of 133395438 is 834593331.

It is a junction number, because it is equal to n+sod(n) for n = 133395396 and 133395405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1010506 + ... + 1010637.

It is an arithmetic number, because the mean of its divisors is an integer number (18190296).

Almost surely, 2133395438 is an apocalyptic number.

133395438 is an abundant number, since it is smaller than the sum of its proper divisors (157649298).

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

133395438 is a wasteful number, since it uses less digits than its factorization.

133395438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2021159.

The product of its digits is 116640, while the sum is 39.

The square root of 133395438 is about 11549.6942816682. The cubic root of 133395438 is about 510.9522616035.

The spelling of 133395438 in words is "one hundred thirty-three million, three hundred ninety-five thousand, four hundred thirty-eight".

Divisors: 1 2 3 6 11 22 33 66 2021143 4042286 6063429 12126858 22232573 44465146 66697719 133395438