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2149680741 = 313463711887
BaseRepresentation
bin1000000000100001…
…1000011001100101
312112211000002121020
42000020120121211
513400304240431
6553151041353
7104161661535
oct20010303145
95484002536
102149680741
11a03490a5a
124bbb10259
13283493b50
141656dd4c5
15c8acc696
hex80218665

2149680741 has 16 divisors (see below), whose sum is σ = 3087646464. Its totient is φ = 1322483904.

The previous prime is 2149680739. The next prime is 2149680751. The reversal of 2149680741 is 1470869412.

It is not a de Polignac number, because 2149680741 - 21 = 2149680739 is a prime.

It is a super-2 number, since 2×21496807412 = 9242254576452618162, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2149680693 and 2149680702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2149680721) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 174900 + ... + 186786.

It is an arithmetic number, because the mean of its divisors is an integer number (192977904).

Almost surely, 22149680741 is an apocalyptic number.

It is an amenable number.

2149680741 is a deficient number, since it is larger than the sum of its proper divisors (937965723).

2149680741 is a wasteful number, since it uses less digits than its factorization.

2149680741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16540.

The product of its (nonzero) digits is 96768, while the sum is 42.

The square root of 2149680741 is about 46364.6496913327. The cubic root of 2149680741 is about 1290.5989929007.

The spelling of 2149680741 in words is "two billion, one hundred forty-nine million, six hundred eighty thousand, seven hundred forty-one".

Divisors: 1 3 13 39 4637 11887 13911 35661 60281 154531 180843 463593 55120019 165360057 716560247 2149680741