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2720353272 = 2337131965557
BaseRepresentation
bin1010001000100101…
…0100101111111000
321000120211021010220
42202021110233320
521032402301042
61125534340040
7124261423050
oct24211245770
97016737126
102720353272
11117662874a
1263b05a620
133447918c0
141bb410560
1510dc558ec
hexa2254bf8

2720353272 has 128 divisors (see below), whose sum is σ = 8810995200. Its totient is φ = 679684608.

The previous prime is 2720353213. The next prime is 2720353319. The reversal of 2720353272 is 2723530272.

It is a super-2 number, since 2×27203532722 = 14800643848962211968, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8718 + ... + 74274.

It is an arithmetic number, because the mean of its divisors is an integer number (68835900).

Almost surely, 22720353272 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2720353272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4405497600).

2720353272 is an abundant number, since it is smaller than the sum of its proper divisors (6090641928).

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

2720353272 is a wasteful number, since it uses less digits than its factorization.

2720353272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65605 (or 65601 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 33.

The square root of 2720353272 is about 52157.0059723524. The cubic root of 2720353272 is about 1395.9668399334.

The spelling of 2720353272 in words is "two billion, seven hundred twenty million, three hundred fifty-three thousand, two hundred seventy-two".

Divisors: 1 2 3 4 6 7 8 12 13 14 19 21 24 26 28 38 39 42 52 56 57 76 78 84 91 104 114 133 152 156 168 182 228 247 266 273 312 364 399 456 494 532 546 728 741 798 988 1064 1092 1482 1596 1729 1976 2184 2964 3192 3458 5187 5928 6916 10374 13832 20748 41496 65557 131114 196671 262228 393342 458899 524456 786684 852241 917798 1245583 1376697 1573368 1704482 1835596 2491166 2556723 2753394 3408964 3671192 3736749 4982332 5113446 5506788 5965687 6817928 7473498 8719081 9964664 10226892 11013576 11931374 14946996 16192579 17438162 17897061 20453784 23862748 26157243 29893992 32385158 34876324 35794122 47725496 48577737 52314486 64770316 69752648 71588244 97155474 104628972 113348053 129540632 143176488 194310948 209257944 226696106 340044159 388621896 453392212 680088318 906784424 1360176636 2720353272