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153401245 = 530680249
BaseRepresentation
bin10010010010010…
…11011110011101
3101200122120221121
421021023132131
5303232314440
623115530541
73541613644
oct1111133635
9350576847
10153401245
1179655698
1243459a51
1325a2008a
141653235b
15d70234a
hex924b79d

153401245 has 4 divisors (see below), whose sum is σ = 184081500. Its totient is φ = 122720992.

The previous prime is 153401243. The next prime is 153401249. The reversal of 153401245 is 542104351.

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: 542104351 = 737426087.

It can be written as a sum of positive squares in 2 ways, for example, as 60047001 + 93354244 = 7749^2 + 9662^2 .

It is a cyclic number.

It is not a de Polignac number, because 153401245 - 21 = 153401243 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (153401243) 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, 15340120 + ... + 15340129.

It is an arithmetic number, because the mean of its divisors is an integer number (46020375).

Almost surely, 2153401245 is an apocalyptic number.

It is an amenable number.

153401245 is a deficient number, since it is larger than the sum of its proper divisors (30680255).

153401245 is an equidigital number, since it uses as much as digits as its factorization.

153401245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30680254.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 153401245 is about 12385.5256246959. The cubic root of 153401245 is about 535.3152653148.

Adding to 153401245 its reverse (542104351), we get a palindrome (695505596).

The spelling of 153401245 in words is "one hundred fifty-three million, four hundred one thousand, two hundred forty-five".

Divisors: 1 5 30680249 153401245