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144313454 = 22329251431
BaseRepresentation
bin10001001101000…
…00110001101110
3101001112212211202
420212200301232
5243421012304
622153045502
73401433635
oct1046406156
9331485752
10144313454
117450891a
12403b6892
1323b8a79c
141524851c
15ca0981e
hex89a0c6e

144313454 has 32 divisors (see below), whose sum is σ = 235146240. Its totient is φ = 66220000.

The previous prime is 144313441. The next prime is 144313457. The reversal of 144313454 is 454313441.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144313457) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 334619 + ... + 335049.

It is an arithmetic number, because the mean of its divisors is an integer number (7348320).

Almost surely, 2144313454 is an apocalyptic number.

144313454 is a deficient number, since it is larger than the sum of its proper divisors (90832786).

144313454 is a wasteful number, since it uses less digits than its factorization.

144313454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 736.

The product of its digits is 11520, while the sum is 29.

The square root of 144313454 is about 12013.0534836069. The cubic root of 144313454 is about 524.5283189045.

Adding to 144313454 its reverse (454313441), we get a palindrome (598626895).

The spelling of 144313454 in words is "one hundred forty-four million, three hundred thirteen thousand, four hundred fifty-four".

Divisors: 1 2 23 29 46 58 251 431 502 667 862 1334 5773 7279 9913 11546 12499 14558 19826 24998 108181 167417 216362 287477 334834 574954 2488163 3137249 4976326 6274498 72156727 144313454