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72381331299 = 3109221349637
BaseRepresentation
bin100001101101001000…
…0110111011101100011
320220211101020121022010
41003122100313131203
52141214110100144
653130155044003
75141451110334
oct1033220673543
9226741217263
1072381331299
1128773413572
1212040440603
136a968c7b24
143708db628b
151d396ea5b9
hex10da437763

72381331299 has 8 divisors (see below), whose sum is σ = 97393840720. Its totient is φ = 47811521376.

The previous prime is 72381331283. The next prime is 72381331313. The reversal of 72381331299 is 99213318327.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 72381331299 - 24 = 72381331283 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72381331219) 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 7 ways as a sum of consecutive naturals, for example, 110674492 + ... + 110675145.

It is an arithmetic number, because the mean of its divisors is an integer number (12174230090).

Almost surely, 272381331299 is an apocalyptic number.

72381331299 is a deficient number, since it is larger than the sum of its proper divisors (25012509421).

72381331299 is a wasteful number, since it uses less digits than its factorization.

72381331299 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221349749.

The product of its digits is 489888, while the sum is 48.

The spelling of 72381331299 in words is "seventy-two billion, three hundred eighty-one million, three hundred thirty-one thousand, two hundred ninety-nine".

Divisors: 1 3 109 327 221349637 664048911 24127110433 72381331299