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2100142144 = 26235092803
BaseRepresentation
bin111110100101101…
…1010000001000000
312102100210021102101
41331023122001000
513300114022034
6544221200144
7103020625252
oct17513320100
95370707371
102100142144
11988525971
124a7400054
1327613a779
1415ccc5cd2
15c4594514
hex7d2da040

2100142144 has 56 divisors (see below), whose sum is σ = 4358761920. Its totient is φ = 1002084864.

The previous prime is 2100142133. The next prime is 2100142153. The reversal of 2100142144 is 4412410012.

It is a super-3 number, since 3×21001421443 (a number of 29 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 747847 + ... + 750649.

Almost surely, 22100142144 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2100142144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2179380960).

2100142144 is an abundant number, since it is smaller than the sum of its proper divisors (2258619776).

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

2100142144 is a wasteful number, since it uses less digits than its factorization.

2100142144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3347 (or 3337 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

The square root of 2100142144 is about 45827.3078415043. The cubic root of 2100142144 is about 1280.6080574538.

Adding to 2100142144 its reverse (4412410012), we get a palindrome (6512552156).

The spelling of 2100142144 in words is "two billion, one hundred million, one hundred forty-two thousand, one hundred forty-four".

Divisors: 1 2 4 8 16 23 32 46 64 92 184 368 509 736 1018 1472 2036 2803 4072 5606 8144 11212 11707 16288 22424 23414 32576 44848 46828 64469 89696 93656 128938 179392 187312 257876 374624 515752 749248 1031504 1426727 2063008 2853454 4126016 5706908 11413816 22827632 32814721 45655264 65629442 91310528 131258884 262517768 525035536 1050071072 2100142144