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15145222380 = 2235252420373
BaseRepresentation
bin11100001101011100…
…11100000011101100
31110002111102000100020
432012232130003230
5222004134104010
610542502402140
71044212160201
oct160656340354
943074360306
1015145222380
1164720a0812
122b28130350
131574964462
14a39627ca8
155d994d470
hex386b9c0ec

15145222380 has 24 divisors (see below), whose sum is σ = 42406622832. Its totient is φ = 4038725952.

The previous prime is 15145222369. The next prime is 15145222381. The reversal of 15145222380 is 8322254151.

15145222380 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (15145222381) 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 7 ways as a sum of consecutive naturals, for example, 126210127 + ... + 126210246.

It is an arithmetic number, because the mean of its divisors is an integer number (1766942618).

Almost surely, 215145222380 is an apocalyptic number.

15145222380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15145222380 is an abundant number, since it is smaller than the sum of its proper divisors (27261400452).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

15145222380 is a wasteful number, since it uses less digits than its factorization.

15145222380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252420385 (or 252420383 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 33.

The spelling of 15145222380 in words is "fifteen billion, one hundred forty-five million, two hundred twenty-two thousand, three hundred eighty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 252420373 504840746 757261119 1009681492 1262101865 1514522238 2524203730 3029044476 3786305595 5048407460 7572611190 15145222380