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147244123 = 1321753967
BaseRepresentation
bin10001100011011…
…00010001011011
3101021001202222001
420301230101123
5300143302443
622335541431
73435361105
oct1061542133
9337052861
10147244123
117612a764
124138a877
1324675700
14157ac575
15cdd7d4d
hex8c6c45b

147244123 has 24 divisors (see below), whose sum is σ = 172183968. Its totient is φ = 125379072.

The previous prime is 147244087. The next prime is 147244151. The reversal of 147244123 is 321442741.

It is not a de Polignac number, because 147244123 - 29 = 147243611 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 147244091 and 147244100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (147244193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 151786 + ... + 152752.

It is an arithmetic number, because the mean of its divisors is an integer number (7174332).

Almost surely, 2147244123 is an apocalyptic number.

147244123 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

147244123 is a deficient number, since it is larger than the sum of its proper divisors (24939845).

147244123 is a wasteful number, since it uses less digits than its factorization.

147244123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1063 (or 1050 counting only the distinct ones).

The product of its digits is 5376, while the sum is 28.

The square root of 147244123 is about 12134.4189395290. The cubic root of 147244123 is about 528.0551994536.

Adding to 147244123 its reverse (321442741), we get a palindrome (468686864).

The spelling of 147244123 in words is "one hundred forty-seven million, two hundred forty-four thousand, one hundred twenty-three".

Divisors: 1 13 17 53 169 221 689 901 967 2873 8957 11713 12571 16439 51251 152269 163423 213707 666263 871267 2778191 8661419 11326471 147244123