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2272907680 = 255194671601
BaseRepresentation
bin1000011101111001…
…1101000110100000
312212101212200011221
42013132131012200
514123331021210
61013312144424
7110216253001
oct20736350640
95771780157
102272907680
11a66aa71aa
12535238114
132a2b7a7b4
14177c191a8
15d481e1da
hex8779d1a0

2272907680 has 96 divisors (see below), whose sum is σ = 5668004160. Its totient is φ = 858931200.

The previous prime is 2272907677. The next prime is 2272907723. The reversal of 2272907680 is 867092722.

It is a happy number.

It is a super-2 number, since 2×22729076802 = 10332218643605964800, which contains 22 as substring.

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, 1418880 + ... + 1420480.

It is an arithmetic number, because the mean of its divisors is an integer number (59041710).

Almost surely, 22272907680 is an apocalyptic number.

2272907680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2272907680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2834002080).

2272907680 is an abundant number, since it is smaller than the sum of its proper divisors (3395096480).

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

2272907680 is a wasteful number, since it uses less digits than its factorization.

2272907680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2102 (or 2094 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 43.

The square root of 2272907680 is about 47675.0215521713. The cubic root of 2272907680 is about 1314.8027346535.

The spelling of 2272907680 in words is "two billion, two hundred seventy-two million, nine hundred seven thousand, six hundred eighty".

Divisors: 1 2 4 5 8 10 16 19 20 32 38 40 76 80 95 152 160 190 304 380 467 608 760 934 1520 1601 1868 2335 3040 3202 3736 4670 6404 7472 8005 8873 9340 12808 14944 16010 17746 18680 25616 30419 32020 35492 37360 44365 51232 60838 64040 70984 74720 88730 121676 128080 141968 152095 177460 243352 256160 283936 304190 354920 486704 608380 709840 747667 973408 1216760 1419680 1495334 2433520 2990668 3738335 4867040 5981336 7476670 11962672 14205673 14953340 23925344 28411346 29906680 56822692 59813360 71028365 113645384 119626720 142056730 227290768 284113460 454581536 568226920 1136453840 2272907680