Search a number
-
+
152474233 = 1491023317
BaseRepresentation
bin10010001011010…
…01001001111001
3101121220111022211
421011221021321
5303013133413
623044015121
73531003202
oct1105511171
9347814284
10152474233
117908216a
12430914a1
1325787152
14163705a9
15d5bc83d
hex9169279

152474233 has 4 divisors (see below), whose sum is σ = 153497700. Its totient is φ = 151450768.

The previous prime is 152474227. The next prime is 152474239. The reversal of 152474233 is 332474251.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 332474251 = 483168821.

It is an interprime number because it is at equal distance from previous prime (152474227) and next prime (152474239).

It can be written as a sum of positive squares in 2 ways, for example, as 80784144 + 71690089 = 8988^2 + 8467^2 .

It is a cyclic number.

It is not a de Polignac number, because 152474233 - 217 = 152343161 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 152474195 and 152474204.

It is not an unprimeable number, because it can be changed into a prime (152474239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 511510 + ... + 511807.

It is an arithmetic number, because the mean of its divisors is an integer number (38374425).

Almost surely, 2152474233 is an apocalyptic number.

It is an amenable number.

152474233 is a deficient number, since it is larger than the sum of its proper divisors (1023467).

152474233 is a wasteful number, since it uses less digits than its factorization.

152474233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1023466.

The product of its digits is 20160, while the sum is 31.

The square root of 152474233 is about 12348.0457158208. The cubic root of 152474233 is about 534.2347728817.

It can be divided in two parts, 1524 and 74233, that added together give a palindrome (75757).

The spelling of 152474233 in words is "one hundred fifty-two million, four hundred seventy-four thousand, two hundred thirty-three".

Divisors: 1 149 1023317 152474233