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72508195141 = 147149291771
BaseRepresentation
bin100001110000111010…
…0110100000101000101
320221011012221221202221
41003201310310011011
52141444044221031
653150530132341
75144551326634
oct1034164640505
9227135857687
1072508195141
1128828a93218
1212076a210b1
136ab6c85ca5
14371bb9b51b
151d45909a11
hex10e1d34145

72508195141 has 4 divisors (see below), whose sum is σ = 72557488384. Its totient is φ = 72458901900.

The previous prime is 72508195127. The next prime is 72508195159. The reversal of 72508195141 is 14159180527.

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 72508195141 - 225 = 72474640709 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 (72508195241) 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, 24644415 + ... + 24647356.

It is an arithmetic number, because the mean of its divisors is an integer number (18139372096).

Almost surely, 272508195141 is an apocalyptic number.

It is an amenable number.

72508195141 is a deficient number, since it is larger than the sum of its proper divisors (49293243).

72508195141 is a wasteful number, since it uses less digits than its factorization.

72508195141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49293242.

The product of its (nonzero) digits is 100800, while the sum is 43.

The spelling of 72508195141 in words is "seventy-two billion, five hundred eight million, one hundred ninety-five thousand, one hundred forty-one".

Divisors: 1 1471 49291771 72508195141