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48142881431 = 349137945219
BaseRepresentation
bin101100110101100010…
…100001001010010111
311121021011022202212122
4230311202201022113
51242044034201211
634041101010155
73323011511621
oct546542411227
9147234282778
1048142881431
1119465446417
1293b6b5395b
1347030a13b8
142489c29c11
1513bb8076db
hexb358a1297

48142881431 has 4 divisors (see below), whose sum is σ = 48280827000. Its totient is φ = 48004935864.

The previous prime is 48142881427. The next prime is 48142881467. The reversal of 48142881431 is 13418824184.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 48142881431 - 22 = 48142881427 is a prime.

It is a super-2 number, since 2×481428814312 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48142881491) 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, 68972261 + ... + 68972958.

It is an arithmetic number, because the mean of its divisors is an integer number (12070206750).

Almost surely, 248142881431 is an apocalyptic number.

48142881431 is a deficient number, since it is larger than the sum of its proper divisors (137945569).

48142881431 is a wasteful number, since it uses less digits than its factorization.

48142881431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137945568.

The product of its digits is 196608, while the sum is 44.

The spelling of 48142881431 in words is "forty-eight billion, one hundred forty-two million, eight hundred eighty-one thousand, four hundred thirty-one".

Divisors: 1 349 137945219 48142881431