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47442443401 = 147132251831
BaseRepresentation
bin101100001011110010…
…100011110010001001
311112110100022211112101
4230023302203302021
51234130231142101
633443400113401
73266445054343
oct541362436211
9145410284471
1047442443401
1119136027a11
129240465861
134620c3a822
142420bba293
15137a09a401
hexb0bca3c89

47442443401 has 4 divisors (see below), whose sum is σ = 47474696704. Its totient is φ = 47410190100.

The previous prime is 47442443387. The next prime is 47442443527. The reversal of 47442443401 is 10434424474.

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 47442443401 - 233 = 38852508809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47442443801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16124445 + ... + 16127386.

It is an arithmetic number, because the mean of its divisors is an integer number (11868674176).

Almost surely, 247442443401 is an apocalyptic number.

It is an amenable number.

47442443401 is a deficient number, since it is larger than the sum of its proper divisors (32253303).

47442443401 is a wasteful number, since it uses less digits than its factorization.

47442443401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32253302.

The product of its (nonzero) digits is 172032, while the sum is 37.

Adding to 47442443401 its reverse (10434424474), we get a palindrome (57876867875).

The spelling of 47442443401 in words is "forty-seven billion, four hundred forty-two million, four hundred forty-three thousand, four hundred one".

Divisors: 1 1471 32251831 47442443401