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144267020 = 2257213351
BaseRepresentation
bin10001001100101…
…01011100001100
3101001110112010222
420212111130030
5243413021040
622152050512
73401151362
oct1046253414
9331415128
10144267020
1174486a47
1240393a38
1323b72601
1415235632
15c9eabb5
hex899570c

144267020 has 12 divisors (see below), whose sum is σ = 302960784. Its totient is φ = 57706800.

The previous prime is 144267001. The next prime is 144267043. The reversal of 144267020 is 20762441.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3606656 + ... + 3606695.

It is an arithmetic number, because the mean of its divisors is an integer number (25246732).

Almost surely, 2144267020 is an apocalyptic number.

144267020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

144267020 is an abundant number, since it is smaller than the sum of its proper divisors (158693764).

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

144267020 is a wasteful number, since it uses less digits than its factorization.

144267020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7213360 (or 7213358 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 26.

The square root of 144267020 is about 12011.1206804361. The cubic root of 144267020 is about 524.4720558188.

The spelling of 144267020 in words is "one hundred forty-four million, two hundred sixty-seven thousand, twenty".

Divisors: 1 2 4 5 10 20 7213351 14426702 28853404 36066755 72133510 144267020