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152331233 = 1933892029
BaseRepresentation
bin10010001010001…
…10001111100001
3101121122020011112
421011012033201
5302444044413
623040553105
73526536245
oct1105061741
9347566145
10152331233
1178a9478a
1243022795
1325737032
1416334425
15d5902a8
hex91463e1

152331233 has 8 divisors (see below), whose sum is σ = 153589800. Its totient is φ = 151077888.

The previous prime is 152331199. The next prime is 152331269. The reversal of 152331233 is 332133251.

It can be written as a sum of positive squares in 4 ways, for example, as 30824704 + 121506529 = 5552^2 + 11023^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 152331233 - 218 = 152069089 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 152331199 and 152331208.

It is not an unprimeable number, because it can be changed into a prime (152331433) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74063 + ... + 76091.

It is an arithmetic number, because the mean of its divisors is an integer number (19198725).

Almost surely, 2152331233 is an apocalyptic number.

It is an amenable number.

152331233 is a deficient number, since it is larger than the sum of its proper divisors (1258567).

152331233 is a wasteful number, since it uses less digits than its factorization.

152331233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2611.

The product of its digits is 1620, while the sum is 23.

The square root of 152331233 is about 12342.2539675701. The cubic root of 152331233 is about 534.0677075655.

Adding to 152331233 its reverse (332133251), we get a palindrome (484464484).

The spelling of 152331233 in words is "one hundred fifty-two million, three hundred thirty-one thousand, two hundred thirty-three".

Divisors: 1 193 389 2029 75077 391597 789281 152331233