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157301428873 = 316621496813
BaseRepresentation
bin1001001001111111100…
…1010101001010001001
3120001000121101112100011
42102133321111022021
510034123131210443
6200132511311521
714236035040621
oct2223771251211
9501017345304
10157301428873
1160790612796
122659bb1b5a1
1311aab163684
147883373881
154159adab9d
hex249fe55289

157301428873 has 4 divisors (see below), whose sum is σ = 157302242308. Its totient is φ = 157300615440.

The previous prime is 157301428861. The next prime is 157301428913. The reversal of 157301428873 is 378824103751.

It is a happy number.

157301428873 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 378824103751 = 401629943219.

It can be written as a sum of positive squares in 2 ways, for example, as 73686188304 + 83615240569 = 271452^2 + 289163^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-157301428873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (157301428373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68215 + ... + 565027.

It is an arithmetic number, because the mean of its divisors is an integer number (39325560577).

Almost surely, 2157301428873 is an apocalyptic number.

It is an amenable number.

157301428873 is a deficient number, since it is larger than the sum of its proper divisors (813435).

157301428873 is an equidigital number, since it uses as much as digits as its factorization.

157301428873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 813434.

The product of its (nonzero) digits is 1128960, while the sum is 49.

The spelling of 157301428873 in words is "one hundred fifty-seven billion, three hundred one million, four hundred twenty-eight thousand, eight hundred seventy-three".

Divisors: 1 316621 496813 157301428873