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152235331 = 1511008181
BaseRepresentation
bin10010001001011…
…10110101000011
3101121110100121121
421010232311003
5302433012311
623034533111
73525656533
oct1104566503
9347410547
10152235331
1178a29726
1242b97197
13257024a1
141630b4c3
15d571b71
hex912ed43

152235331 has 4 divisors (see below), whose sum is σ = 153243664. Its totient is φ = 151227000.

The previous prime is 152235269. The next prime is 152235361. The reversal of 152235331 is 133532251.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 133532251 = 251532001.

It is a cyclic number.

It is not a de Polignac number, because 152235331 - 221 = 150138179 is a prime.

It is a super-2 number, since 2×1522353312 = 46351192009359122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 152235296 and 152235305.

It is not an unprimeable number, because it can be changed into a prime (152235361) 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, 503940 + ... + 504241.

It is an arithmetic number, because the mean of its divisors is an integer number (38310916).

Almost surely, 2152235331 is an apocalyptic number.

152235331 is a deficient number, since it is larger than the sum of its proper divisors (1008333).

152235331 is a wasteful number, since it uses less digits than its factorization.

152235331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1008332.

The product of its digits is 2700, while the sum is 25.

The square root of 152235331 is about 12338.3682470576. The cubic root of 152235331 is about 533.9556077411.

Adding to 152235331 its reverse (133532251), we get a palindrome (285767582).

The spelling of 152235331 in words is "one hundred fifty-two million, two hundred thirty-five thousand, three hundred thirty-one".

Divisors: 1 151 1008181 152235331