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152720041 = 1511011391
BaseRepresentation
bin10010001101001…
…01001010101001
3101122100222111211
421012211022221
5303044020131
623053153121
73533045635
oct1106451251
9348328454
10152720041
117922a911
124318b7a1
1325841cb6
14163d5dc5
15d61a5b1
hex91a52a9

152720041 has 4 divisors (see below), whose sum is σ = 153731584. Its totient is φ = 151708500.

The previous prime is 152720033. The next prime is 152720059. The reversal of 152720041 is 140027251.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 152720041 - 23 = 152720033 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 152719994 and 152720021.

It is not an unprimeable number, because it can be changed into a prime (152720011) 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, 505545 + ... + 505846.

It is an arithmetic number, because the mean of its divisors is an integer number (38432896).

Almost surely, 2152720041 is an apocalyptic number.

It is an amenable number.

152720041 is a deficient number, since it is larger than the sum of its proper divisors (1011543).

152720041 is a wasteful number, since it uses less digits than its factorization.

152720041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1011542.

The product of its (nonzero) digits is 560, while the sum is 22.

The square root of 152720041 is about 12357.9950234656. The cubic root of 152720041 is about 534.5217037154.

Adding to 152720041 its reverse (140027251), we get a palindrome (292747292).

The spelling of 152720041 in words is "one hundred fifty-two million, seven hundred twenty thousand, forty-one".

Divisors: 1 151 1011391 152720041