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2794990320 = 243351293977
BaseRepresentation
bin1010011010011000…
…0010101011110000
321012210021012221000
42212212002223300
521211004142240
61141202202000
7126156011553
oct24646025360
97183235830
102794990320
111204776661
12660053300
13357094c35
141c72bc69a
1511559a430
hexa6982af0

2794990320 has 80 divisors (see below), whose sum is σ = 9627196320. Its totient is φ = 745330176.

The previous prime is 2794990283. The next prime is 2794990327. The reversal of 2794990320 is 230994972.

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 (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2794990327) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 644829 + ... + 649148.

It is an arithmetic number, because the mean of its divisors is an integer number (120339954).

Almost surely, 22794990320 is an apocalyptic number.

2794990320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2794990320 is an abundant number, since it is smaller than the sum of its proper divisors (6832206000).

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

2794990320 is a wasteful number, since it uses less digits than its factorization.

2794990320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1293999 (or 1293987 counting only the distinct ones).

The product of its (nonzero) digits is 244944, while the sum is 45.

The square root of 2794990320 is about 52867.6680022866. The cubic root of 2794990320 is about 1408.6186562258.

The spelling of 2794990320 in words is "two billion, seven hundred ninety-four million, nine hundred ninety thousand, three hundred twenty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 27 30 36 40 45 48 54 60 72 80 90 108 120 135 144 180 216 240 270 360 432 540 720 1080 2160 1293977 2587954 3881931 5175908 6469885 7763862 10351816 11645793 12939770 15527724 19409655 20703632 23291586 25879540 31055448 34937379 38819310 46583172 51759080 58228965 62110896 69874758 77638620 93166344 103518160 116457930 139749516 155277240 174686895 186332688 232915860 279499032 310554480 349373790 465831720 558998064 698747580 931663440 1397495160 2794990320