Search a number
-
+
153038423 = 295277187
BaseRepresentation
bin10010001111100…
…10111001010111
3101122222011020202
421013302321113
5303134212143
623104051115
73535543106
oct1107627127
9348864222
10153038423
117942803a
1243303a9b
1325923ba5
141647a03d
15d67eab8
hex91f2e57

153038423 has 4 divisors (see below), whose sum is σ = 158315640. Its totient is φ = 147761208.

The previous prime is 153038411. The next prime is 153038449. The reversal of 153038423 is 324830351.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 153038423 - 28 = 153038167 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29), and also a Moran number because the ratio is a prime number: 5277187 = 153038423 / (1 + 5 + 3 + 0 + 3 + 8 + 4 + 2 + 3).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (153038023) 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, 2638565 + ... + 2638622.

It is an arithmetic number, because the mean of its divisors is an integer number (39578910).

Almost surely, 2153038423 is an apocalyptic number.

153038423 is a deficient number, since it is larger than the sum of its proper divisors (5277217).

153038423 is an equidigital number, since it uses as much as digits as its factorization.

153038423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5277216.

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 153038423 is about 12370.8699370739. The cubic root of 153038423 is about 534.8928926412.

Adding to 153038423 its reverse (324830351), we get a palindrome (477868774).

The spelling of 153038423 in words is "one hundred fifty-three million, thirty-eight thousand, four hundred twenty-three".

Divisors: 1 29 5277187 153038423