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144604020 = 223511219097
BaseRepresentation
bin10001001111001…
…11101101110100
3101002002122102110
420213213231310
5244004312040
622203211020
73404054031
oct1047475564
9332078373
10144604020
1174697160
1240516a70
1323c5cb12
14152c2388
15ca65980
hex89e7b74

144604020 has 48 divisors (see below), whose sum is σ = 441701568. Its totient is φ = 35055360.

The previous prime is 144603961. The next prime is 144604027. The reversal of 144604020 is 20406441.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144604027) 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, 108889 + ... + 110208.

It is an arithmetic number, because the mean of its divisors is an integer number (9202116).

Almost surely, 2144604020 is an apocalyptic number.

144604020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

144604020 is an abundant number, since it is smaller than the sum of its proper divisors (297097548).

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

144604020 is a wasteful number, since it uses less digits than its factorization.

144604020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219120 (or 219118 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 144604020 is about 12025.1411634126. The cubic root of 144604020 is about 524.8801177520.

The spelling of 144604020 in words is "one hundred forty-four million, six hundred four thousand, twenty".

Divisors: 1 2 3 4 5 6 10 11 12 15 20 22 30 33 44 55 60 66 110 132 165 220 330 660 219097 438194 657291 876388 1095485 1314582 2190970 2410067 2629164 3286455 4381940 4820134 6572910 7230201 9640268 12050335 13145820 14460402 24100670 28920804 36151005 48201340 72302010 144604020