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2144319144 = 233118122421
BaseRepresentation
bin111111111001111…
…1011011010101000
312112102220200212120
41333303323122220
513342421203034
6552440111240
7104065261212
oct17763733250
95472820776
102144319144
11a00459790
124ba165520
132823375c6
14164b055b2
15c83bdc49
hex7fcfb6a8

2144319144 has 32 divisors (see below), whose sum is σ = 5848143840. Its totient is φ = 649793600.

The previous prime is 2144319109. The next prime is 2144319161. The reversal of 2144319144 is 4419134412.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4060947 + ... + 4061474.

It is an arithmetic number, because the mean of its divisors is an integer number (182754495).

Almost surely, 22144319144 is an apocalyptic number.

2144319144 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2144319144 is an abundant number, since it is smaller than the sum of its proper divisors (3703824696).

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

2144319144 is a wasteful number, since it uses less digits than its factorization.

2144319144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8122441 (or 8122437 counting only the distinct ones).

The product of its digits is 13824, while the sum is 33.

The square root of 2144319144 is about 46306.7937132339. The cubic root of 2144319144 is about 1289.5251229674.

The spelling of 2144319144 in words is "two billion, one hundred forty-four million, three hundred nineteen thousand, one hundred forty-four".

Divisors: 1 2 3 4 6 8 11 12 22 24 33 44 66 88 132 264 8122421 16244842 24367263 32489684 48734526 64979368 89346631 97469052 178693262 194938104 268039893 357386524 536079786 714773048 1072159572 2144319144