Search a number
-
+
153235045 = 530647009
BaseRepresentation
bin10010010001000…
…10111001100101
3101200100010222001
421020202321211
5303212010140
623112205301
73540322255
oct1110427145
9350303861
10153235045
1179551837
1243399831
1325992532
14164cb965
15d6bce9a
hex9222e65

153235045 has 4 divisors (see below), whose sum is σ = 183882060. Its totient is φ = 122588032.

The previous prime is 153235009. The next prime is 153235051. The reversal of 153235045 is 540532351.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 540532351 = 5031074617.

It can be written as a sum of positive squares in 2 ways, for example, as 34468641 + 118766404 = 5871^2 + 10898^2 .

It is a cyclic number.

It is not a de Polignac number, because 153235045 - 219 = 152710757 is a prime.

It is a super-3 number, since 3×1532350453 (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15323500 + ... + 15323509.

It is an arithmetic number, because the mean of its divisors is an integer number (45970515).

Almost surely, 2153235045 is an apocalyptic number.

It is an amenable number.

153235045 is a deficient number, since it is larger than the sum of its proper divisors (30647015).

153235045 is an equidigital number, since it uses as much as digits as its factorization.

153235045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30647014.

The product of its (nonzero) digits is 9000, while the sum is 28.

The square root of 153235045 is about 12378.8143616422. The cubic root of 153235045 is about 535.1218693458.

Adding to 153235045 its reverse (540532351), we get a palindrome (693767396).

The spelling of 153235045 in words is "one hundred fifty-three million, two hundred thirty-five thousand, forty-five".

Divisors: 1 5 30647009 153235045