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3142231440 = 243559221909
BaseRepresentation
bin1011101101001010…
…1010010110010000
322002222122220012020
42323102222112100
522413402401230
61235444531440
7140603345415
oct27322522620
98088586166
103142231440
111372786a97
127383b0b80
133b0cc345a
1421b46c10c
15135cdb810
hexbb4aa590

3142231440 has 80 divisors (see below), whose sum is σ = 9906062400. Its totient is φ = 823722496.

The previous prime is 3142231439. The next prime is 3142231471. The reversal of 3142231440 is 441322413.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 3142231440.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 96795 + ... + 125114.

It is an arithmetic number, because the mean of its divisors is an integer number (123825780).

Almost surely, 23142231440 is an apocalyptic number.

3142231440 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3142231440 is an abundant number, since it is smaller than the sum of its proper divisors (6763830960).

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

3142231440 is a wasteful number, since it uses less digits than its factorization.

3142231440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221984 (or 221978 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 3142231440 is about 56055.6102455410. The cubic root of 3142231440 is about 1464.6911469813.

Adding to 3142231440 its reverse (441322413), we get a palindrome (3583553853).

The spelling of 3142231440 in words is "three billion, one hundred forty-two million, two hundred thirty-one thousand, four hundred forty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 40 48 59 60 80 118 120 177 236 240 295 354 472 590 708 885 944 1180 1416 1770 2360 2832 3540 4720 7080 14160 221909 443818 665727 887636 1109545 1331454 1775272 2219090 2662908 3328635 3550544 4438180 5325816 6657270 8876360 10651632 13092631 13314540 17752720 26185262 26629080 39277893 52370524 53258160 65463155 78555786 104741048 130926310 157111572 196389465 209482096 261852620 314223144 392778930 523705240 628446288 785557860 1047410480 1571115720 3142231440