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2144951677 = 11712746417
BaseRepresentation
bin111111111011001…
…0101110101111101
312112111002211112201
41333312111311331
513343101423202
6552501431501
7104103534301
oct17766256575
95474084481
102144951677
11a00850a40
124ba40b591
132824c949b
14164c2bd01
15c8496387
hex7fd95d7d

2144951677 has 8 divisors (see below), whose sum is σ = 2372905152. Its totient is φ = 1922491200.

The previous prime is 2144951609. The next prime is 2144951747. The reversal of 2144951677 is 7761594412.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2144951677 - 223 = 2136563069 is a prime.

It is a super-2 number, since 2×21449516772 = 9201635393330224658, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2144951177) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1372428 + ... + 1373989.

It is an arithmetic number, because the mean of its divisors is an integer number (296613144).

Almost surely, 22144951677 is an apocalyptic number.

It is an amenable number.

2144951677 is a deficient number, since it is larger than the sum of its proper divisors (227953475).

2144951677 is a wasteful number, since it uses less digits than its factorization.

2144951677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2746499.

The product of its digits is 423360, while the sum is 46.

The square root of 2144951677 is about 46313.6230174233. The cubic root of 2144951677 is about 1289.6519055576.

The spelling of 2144951677 in words is "two billion, one hundred forty-four million, nine hundred fifty-one thousand, six hundred seventy-seven".

Divisors: 1 11 71 781 2746417 30210587 194995607 2144951677