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2868738945 = 353711534483
BaseRepresentation
bin1010101011111101…
…0111101110000001
321101221001001000120
42222333113232001
521333344121240
61152355010453
7131042610252
oct25277275601
97357031016
102868738945
111242368036
12680899a29
13369446a87
141d2dd8b29
1511bcb6ad0
hexaafd7b81

2868738945 has 32 divisors (see below), whose sum is σ = 4719176832. Its totient is φ = 1487020032.

The previous prime is 2868738941. The next prime is 2868738949. The reversal of 2868738945 is 5498378682.

It is an interprime number because it is at equal distance from previous prime (2868738941) and next prime (2868738949).

It is not a de Polignac number, because 2868738945 - 22 = 2868738941 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2868738941) 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 31 ways as a sum of consecutive naturals, for example, 637674 + ... + 642156.

It is an arithmetic number, because the mean of its divisors is an integer number (147474276).

Almost surely, 22868738945 is an apocalyptic number.

It is an amenable number.

2868738945 is a deficient number, since it is larger than the sum of its proper divisors (1850437887).

2868738945 is a wasteful number, since it uses less digits than its factorization.

2868738945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5681.

The product of its digits is 23224320, while the sum is 60.

The square root of 2868738945 is about 53560.6100133298. The cubic root of 2868738945 is about 1420.9005305826.

The spelling of 2868738945 in words is "two billion, eight hundred sixty-eight million, seven hundred thirty-eight thousand, nine hundred forty-five".

Divisors: 1 3 5 15 37 111 185 555 1153 3459 4483 5765 13449 17295 22415 42661 67245 127983 165871 213305 497613 639915 829355 2488065 5168899 15506697 25844495 77533485 191249263 573747789 956246315 2868738945