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144351040 = 265451097
BaseRepresentation
bin10001001101010…
…01111101000000
3101001121210101211
420212221331000
5243423213130
622153535504
73401651341
oct1046517500
9331553354
10144351040
1174534089
1240414594
1323ba1922
14152580c8
15ca15a2a
hex89a9f40

144351040 has 28 divisors (see below), whose sum is σ = 343736676. Its totient is φ = 57740288.

The previous prime is 144351019. The next prime is 144351133. The reversal of 144351040 is 40153441.

It can be written as a sum of positive squares in 2 ways, for example, as 96353856 + 47997184 = 9816^2 + 6928^2 .

It is a congruent number.

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, 225229 + ... + 225868.

Almost surely, 2144351040 is an apocalyptic number.

144351040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

144351040 is an abundant number, since it is smaller than the sum of its proper divisors (199385636).

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

144351040 is an equidigital number, since it uses as much as digits as its factorization.

144351040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 451114 (or 451104 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 144351040 is about 12014.6177633747. The cubic root of 144351040 is about 524.5738522199.

The spelling of 144351040 in words is "one hundred forty-four million, three hundred fifty-one thousand, forty".

Divisors: 1 2 4 5 8 10 16 20 32 40 64 80 160 320 451097 902194 1804388 2255485 3608776 4510970 7217552 9021940 14435104 18043880 28870208 36087760 72175520 144351040