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144087252 = 22367179213
BaseRepresentation
bin10001001011010…
…01100011010100
3101001010101112220
420211221203110
5243341243002
622144142340
73366502311
oct1045514324
9331111486
10144087252
1174373981
12403079b0
1323b0b83a
14151c9d08
15c9b27bc
hex89698d4

144087252 has 24 divisors (see below), whose sum is σ = 341223456. Its totient is φ = 47311968.

The previous prime is 144087197. The next prime is 144087259. The reversal of 144087252 is 252780441.

It is a super-2 number, since 2×1440872522 = 41522272377823008, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144087259) 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, 88803 + ... + 90410.

It is an arithmetic number, because the mean of its divisors is an integer number (14217644).

Almost surely, 2144087252 is an apocalyptic number.

144087252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

144087252 is an abundant number, since it is smaller than the sum of its proper divisors (197136204).

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

144087252 is a wasteful number, since it uses less digits than its factorization.

144087252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179287 (or 179285 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 33.

The square root of 144087252 is about 12003.6349494643. The cubic root of 144087252 is about 524.2541208602.

The spelling of 144087252 in words is "one hundred forty-four million, eighty-seven thousand, two hundred fifty-two".

Divisors: 1 2 3 4 6 12 67 134 201 268 402 804 179213 358426 537639 716852 1075278 2150556 12007271 24014542 36021813 48029084 72043626 144087252