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4991101368 = 2331118905687
BaseRepresentation
bin1001010010111111…
…00010100110111000
3110212211122012221020
410221133202212320
540210210220433
62143132342440
7234453442641
oct45137424670
913784565836
104991101368
11213138a370
12b73614a20
13617064426
14354c266c8
151e3299cb3
hex1297e29b8

4991101368 has 32 divisors (see below), whose sum is σ = 13612095360. Its totient is φ = 1512454880.

The previous prime is 4991101343. The next prime is 4991101373. The reversal of 4991101368 is 8631011994.

It is a super-4 number, since 4×49911013684 (a number of 40 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9452580 + ... + 9453107.

It is an arithmetic number, because the mean of its divisors is an integer number (425377980).

Almost surely, 24991101368 is an apocalyptic number.

It is an amenable number.

4991101368 is an abundant number, since it is smaller than the sum of its proper divisors (8620993992).

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

4991101368 is a wasteful number, since it uses less digits than its factorization.

4991101368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18905707 (or 18905703 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 42.

The square root of 4991101368 is about 70647.7272670537. The cubic root of 4991101368 is about 1708.9609144999.

The spelling of 4991101368 in words is "four billion, nine hundred ninety-one million, one hundred one thousand, three hundred sixty-eight".

Divisors: 1 2 3 4 6 8 11 12 22 24 33 44 66 88 132 264 18905687 37811374 56717061 75622748 113434122 151245496 207962557 226868244 415925114 453736488 623887671 831850228 1247775342 1663700456 2495550684 4991101368