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144054420 = 22352400907
BaseRepresentation
bin10001001011000…
…01100010010100
3101001001201111220
420211201202110
5243334220140
622143330340
73366304506
oct1045414224
9331051456
10144054420
1174351244
12402b09b0
1323ac9903
14151bbd76
15c9a7bd0
hex8961894

144054420 has 24 divisors (see below), whose sum is σ = 403352544. Its totient is φ = 38414496.

The previous prime is 144054419. The next prime is 144054433. The reversal of 144054420 is 24450441.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1200394 + ... + 1200513.

It is an arithmetic number, because the mean of its divisors is an integer number (16806356).

Almost surely, 2144054420 is an apocalyptic number.

144054420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

144054420 is an abundant number, since it is smaller than the sum of its proper divisors (259298124).

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

144054420 is a wasteful number, since it uses less digits than its factorization.

144054420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2400919 (or 2400917 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 24.

The square root of 144054420 is about 12002.2672858090. The cubic root of 144054420 is about 524.2142986493.

The spelling of 144054420 in words is "one hundred forty-four million, fifty-four thousand, four hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 2400907 4801814 7202721 9603628 12004535 14405442 24009070 28810884 36013605 48018140 72027210 144054420