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144790400 = 275245247
BaseRepresentation
bin10001010000101…
…01001110000000
3101002110010002102
420220111032000
5244031243100
622211205532
73405461306
oct1050251600
9332403072
10144790400
1174804197
12405a68a8
1323cc68c1
1415330276
15caa0cd5
hex8a15380

144790400 has 48 divisors (see below), whose sum is σ = 357685440. Its totient is φ = 57914880.

The previous prime is 144790397. The next prime is 144790421. The reversal of 144790400 is 4097441.

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 19424 + ... + 25823.

It is an arithmetic number, because the mean of its divisors is an integer number (7451780).

Almost surely, 2144790400 is an apocalyptic number.

144790400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

144790400 is an abundant number, since it is smaller than the sum of its proper divisors (212895040).

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

144790400 is an equidigital number, since it uses as much as digits as its factorization.

144790400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45271 (or 45254 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 144790400 is about 12032.8882650842. Note that the first 3 decimals coincide. The cubic root of 144790400 is about 525.1055267843.

The spelling of 144790400 in words is "one hundred forty-four million, seven hundred ninety thousand, four hundred".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 64 80 100 128 160 200 320 400 640 800 1600 3200 45247 90494 180988 226235 361976 452470 723952 904940 1131175 1447904 1809880 2262350 2895808 3619760 4524700 5791616 7239520 9049400 14479040 18098800 28958080 36197600 72395200 144790400