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2920747284 = 2232713891559
BaseRepresentation
bin1010111000010111…
…0001000100010100
321112112220100001100
42232011301010110
521440202403114
61201453430100
7132243641130
oct25605610424
97475810040
102920747284
11126975a734
1269619b330
13377156340
141d9c963c0
1512163b909
hexae171114

2920747284 has 72 divisors (see below), whose sum is σ = 9086779520. Its totient is φ = 770306112.

The previous prime is 2920747231. The next prime is 2920747303. The reversal of 2920747284 is 4827470292.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 442504 + ... + 449055.

Almost surely, 22920747284 is an apocalyptic number.

It is an amenable number.

2920747284 is an abundant number, since it is smaller than the sum of its proper divisors (6166032236).

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

2920747284 is a wasteful number, since it uses less digits than its factorization.

2920747284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 891589 (or 891584 counting only the distinct ones).

The product of its (nonzero) digits is 451584, while the sum is 45.

The square root of 2920747284 is about 54043.9384575181. The cubic root of 2920747284 is about 1429.4358189759.

The spelling of 2920747284 in words is "two billion, nine hundred twenty million, seven hundred forty-seven thousand, two hundred eighty-four".

Divisors: 1 2 3 4 6 7 9 12 13 14 18 21 26 28 36 39 42 52 63 78 84 91 117 126 156 182 234 252 273 364 468 546 819 1092 1638 3276 891559 1783118 2674677 3566236 5349354 6240913 8024031 10698708 11590267 12481826 16048062 18722739 23180534 24963652 32096124 34770801 37445478 46361068 56168217 69541602 74890956 81131869 104312403 112336434 139083204 162263738 208624806 224672868 243395607 324527476 417249612 486791214 730186821 973582428 1460373642 2920747284