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2204940720 = 243531296363
BaseRepresentation
bin1000001101101100…
…1011100110110000
312200122222121001010
42003123023212300
514003431100340
61002443310520
7105432454413
oct20333134660
95618877033
102204940720
11a316a4664
1251651b440
13291a71468
1416cba5b7a
15cd895b80
hex836cb9b0

2204940720 has 80 divisors (see below), whose sum is σ = 7055834112. Its totient is φ = 569015040.

The previous prime is 2204940719. The next prime is 2204940767. The reversal of 2204940720 is 270494022.

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

It is a super-4 number, since 4×22049407204 (a number of 38 digits) contains 4444 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 140742 + ... + 155621.

Almost surely, 22204940720 is an apocalyptic number.

2204940720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2204940720 is an abundant number, since it is smaller than the sum of its proper divisors (4850893392).

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

2204940720 is a wasteful number, since it uses less digits than its factorization.

2204940720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 296410 (or 296404 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 2204940720 is about 46956.7963132069. The cubic root of 2204940720 is about 1301.5643337919.

The spelling of 2204940720 in words is "two billion, two hundred four million, nine hundred forty thousand, seven hundred twenty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 31 40 48 60 62 80 93 120 124 155 186 240 248 310 372 465 496 620 744 930 1240 1488 1860 2480 3720 7440 296363 592726 889089 1185452 1481815 1778178 2370904 2963630 3556356 4445445 4741808 5927260 7112712 8890890 9187253 11854520 14225424 17781780 18374506 23709040 27561759 35563560 36749012 45936265 55123518 71127120 73498024 91872530 110247036 137808795 146996048 183745060 220494072 275617590 367490120 440988144 551235180 734980240 1102470360 2204940720