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144251020 = 2257212551
BaseRepresentation
bin10001001100100…
…01100010001100
3101001102201012101
420212101202030
5243412013040
622151444444
73401053624
oct1046214214
9331381171
10144251020
1174475a21
1240386724
1323b68244
141522d884
15c9e609a
hex899188c

144251020 has 12 divisors (see below), whose sum is σ = 302927184. Its totient is φ = 57700400.

The previous prime is 144250991. The next prime is 144251039. The reversal of 144251020 is 20152441.

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, 3606256 + ... + 3606295.

It is an arithmetic number, because the mean of its divisors is an integer number (25243932).

Almost surely, 2144251020 is an apocalyptic number.

144251020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

144251020 is an abundant number, since it is smaller than the sum of its proper divisors (158676164).

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

144251020 is a wasteful number, since it uses less digits than its factorization.

144251020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7212560 (or 7212558 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 144251020 is about 12010.4546125449. The cubic root of 144251020 is about 524.4526661641.

The spelling of 144251020 in words is "one hundred forty-four million, two hundred fifty-one thousand, twenty".

Divisors: 1 2 4 5 10 20 7212551 14425102 28850204 36062755 72125510 144251020