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2154104244 = 2232487122867
BaseRepresentation
bin1000000001100101…
…0000010110110100
312120010022211111200
42000121100112310
513402422313434
6553425532500
7104244404205
oct20031202664
95503284450
102154104244
11a05a32446
125014a4130
132843823c6
141661315ac
15c91a3199
hex806505b4

2154104244 has 36 divisors (see below), whose sum is σ = 5456322144. Its totient is φ = 716554512.

The previous prime is 2154104237. The next prime is 2154104257. The reversal of 2154104244 is 4424014512.

2154104244 is a `hidden beast` number, since 2 + 1 + 5 + 410 + 4 + 244 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 43902 + ... + 78965.

It is an arithmetic number, because the mean of its divisors is an integer number (151564504).

Almost surely, 22154104244 is an apocalyptic number.

It is an amenable number.

2154104244 is an abundant number, since it is smaller than the sum of its proper divisors (3302217900).

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

2154104244 is a wasteful number, since it uses less digits than its factorization.

2154104244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123364 (or 123359 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 27.

The square root of 2154104244 is about 46412.3285776527. The cubic root of 2154104244 is about 1291.4836292414.

Adding to 2154104244 its reverse (4424014512), we get a palindrome (6578118756).

The spelling of 2154104244 in words is "two billion, one hundred fifty-four million, one hundred four thousand, two hundred forty-four".

Divisors: 1 2 3 4 6 9 12 18 36 487 974 1461 1948 2922 4383 5844 8766 17532 122867 245734 368601 491468 737202 1105803 1474404 2211606 4423212 59836229 119672458 179508687 239344916 359017374 538526061 718034748 1077052122 2154104244