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144030400 = 265290019
BaseRepresentation
bin10001001010110…
…11101011000000
3101001000111120021
420211123223000
5243332433100
622143023224
73366144463
oct1045335300
9331014507
10144030400
1174335198
124029ab14
1323abb9b7
14151b32da
15c9a0a1a
hex895bac0

144030400 has 42 divisors (see below), whose sum is σ = 354408740. Its totient is φ = 57611520.

The previous prime is 144030379. The next prime is 144030427. The reversal of 144030400 is 4030441.

It is a super-2 number, since 2×1440304002 = 41489512248320000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (16).

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, 43410 + ... + 46609.

Almost surely, 2144030400 is an apocalyptic number.

144030400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

144030400 is an abundant number, since it is smaller than the sum of its proper divisors (210378340).

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

144030400 is an equidigital number, since it uses as much as digits as its factorization.

144030400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90041 (or 90026 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 144030400 is about 12001.2665998219. The cubic root of 144030400 is about 524.1851607550.

Adding to 144030400 its reverse (4030441), we get a palindrome (148060841).

The spelling of 144030400 in words is "one hundred forty-four million, thirty thousand, four hundred".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 64 80 100 160 200 320 400 800 1600 90019 180038 360076 450095 720152 900190 1440304 1800380 2250475 2880608 3600760 4500950 5761216 7201520 9001900 14403040 18003800 28806080 36007600 72015200 144030400