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144113502 = 23131847609
BaseRepresentation
bin10001001011011…
…11111101011110
3101001011201120010
420211233331132
5243343113002
622144504050
73366641661
oct1045577536
9331151503
10144113502
1174391675
124031b026
1323b1a780
14151d56d8
15c9ba46c
hex896ff5e

144113502 has 16 divisors (see below), whose sum is σ = 310398480. Its totient is φ = 44342592.

The previous prime is 144113479. The next prime is 144113503. The reversal of 144113502 is 205311441.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144113503) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 923727 + ... + 923882.

It is an arithmetic number, because the mean of its divisors is an integer number (19399905).

Almost surely, 2144113502 is an apocalyptic number.

144113502 is an abundant number, since it is smaller than the sum of its proper divisors (166284978).

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

144113502 is a wasteful number, since it uses less digits than its factorization.

144113502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1847627.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 144113502 is about 12004.7283184585. The cubic root of 144113502 is about 524.2859553559.

Adding to 144113502 its reverse (205311441), we get a palindrome (349424943).

The spelling of 144113502 in words is "one hundred forty-four million, one hundred thirteen thousand, five hundred two".

Divisors: 1 2 3 6 13 26 39 78 1847609 3695218 5542827 11085654 24018917 48037834 72056751 144113502