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153131234 = 2372069341
BaseRepresentation
bin10010010000010…
…01100011100010
3101200010212120012
421020021203202
5303200144414
623110044522
73536410514
oct1110114342
9350125505
10153131234
1179490843
1243349742
13259571c9
14164a1bb4
15d69c33e
hex92098e2

153131234 has 8 divisors (see below), whose sum is σ = 235904988. Its totient is φ = 74496240.

The previous prime is 153131221. The next prime is 153131239. The reversal of 153131234 is 432131351.

It can be written as a sum of positive squares in 2 ways, for example, as 139830625 + 13300609 = 11825^2 + 3647^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (153131239) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1034597 + ... + 1034744.

Almost surely, 2153131234 is an apocalyptic number.

153131234 is a deficient number, since it is larger than the sum of its proper divisors (82773754).

153131234 is a wasteful number, since it uses less digits than its factorization.

153131234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2069380.

The product of its digits is 1080, while the sum is 23.

The square root of 153131234 is about 12374.6205598394. The cubic root of 153131234 is about 535.0010003766.

Adding to 153131234 its reverse (432131351), we get a palindrome (585262585).

The spelling of 153131234 in words is "one hundred fifty-three million, one hundred thirty-one thousand, two hundred thirty-four".

Divisors: 1 2 37 74 2069341 4138682 76565617 153131234