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2912929481 = 7111747113419
BaseRepresentation
bin1010110110011111…
…1100011011001001
321112000012011001002
42231213330123021
521431202220411
61201014104345
7132120330530
oct25547743311
97460164032
102912929481
111265300040
1269364b0b5
13375649b17
141d8c1d317
15120ae533b
hexad9fc6c9

2912929481 has 64 divisors (see below), whose sum is σ = 3971358720. Its totient is φ = 2067394560.

The previous prime is 2912929469. The next prime is 2912929489. The reversal of 2912929481 is 1849292192.

It is a de Polignac number, because none of the positive numbers 2k-2912929481 is a prime.

It is a super-2 number, since 2×29129294812 = 16970316322557858722, which contains 22 as substring.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is not an unprimeable number, because it can be changed into a prime (2912929489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6951890 + ... + 6952308.

It is an arithmetic number, because the mean of its divisors is an integer number (62052480).

Almost surely, 22912929481 is an apocalyptic number.

It is an amenable number.

2912929481 is a deficient number, since it is larger than the sum of its proper divisors (1058429239).

2912929481 is a wasteful number, since it uses less digits than its factorization.

2912929481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 614.

The product of its digits is 186624, while the sum is 47.

The square root of 2912929481 is about 53971.5617802561. The cubic root of 2912929481 is about 1428.1593154030.

The spelling of 2912929481 in words is "two billion, nine hundred twelve million, nine hundred twenty-nine thousand, four hundred eighty-one".

Divisors: 1 7 11 17 47 77 113 119 187 329 419 517 791 799 1243 1309 1921 2933 3619 4609 5311 5593 7123 8701 8789 13447 19693 21131 32263 37177 47347 49861 58421 61523 78353 90287 137851 147917 216623 331429 334781 408947 520817 548471 632009 804899 993157 1516361 2225309 2343467 3645719 3682591 5634293 6952099 8853889 15577163 24478399 25778137 37830253 61977223 171348793 264811771 416132783 2912929481