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1301400143 = 2944875867
BaseRepresentation
bin100110110010001…
…1100101001001111
310100200210222101022
41031210130221033
510131124301033
6333045304355
744151501341
oct11544345117
93320728338
101301400143
1160867420a
12303a050bb
13179808374
14c4ba7291
15793ba098
hex4d91ca4f

1301400143 has 4 divisors (see below), whose sum is σ = 1346276040. Its totient is φ = 1256524248.

The previous prime is 1301400137. The next prime is 1301400157. The reversal of 1301400143 is 3410041031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3410041031 = 5387633013.

It is a cyclic number.

It is not a de Polignac number, because 1301400143 - 228 = 1032964687 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1301400043) 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, 22437905 + ... + 22437962.

It is an arithmetic number, because the mean of its divisors is an integer number (336569010).

Almost surely, 21301400143 is an apocalyptic number.

1301400143 is a deficient number, since it is larger than the sum of its proper divisors (44875897).

1301400143 is an equidigital number, since it uses as much as digits as its factorization.

1301400143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44875896.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 1301400143 is about 36074.9240193240. The cubic root of 1301400143 is about 1091.7845645551.

Adding to 1301400143 its reverse (3410041031), we get a palindrome (4711441174).

The spelling of 1301400143 in words is "one billion, three hundred one million, four hundred thousand, one hundred forty-three".

Divisors: 1 29 44875867 1301400143