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2105760 = 253541107
BaseRepresentation
bin1000000010000110100000
310221222120010
420002012200
51014341020
6113044520
723620146
oct10020640
93858503
102105760
1112090a8
12856740
13589617
143cb596
152b8de0
hex2021a0

2105760 has 96 divisors (see below), whose sum is σ = 6858432. Its totient is φ = 542720.

The previous prime is 2105759. The next prime is 2105767. The reversal of 2105760 is 675012.

It is a tau number, because it is divible by the number of its divisors (96).

It is not an unprimeable number, because it can be changed into a prime (2105767) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19627 + ... + 19733.

It is an arithmetic number, because the mean of its divisors is an integer number (71442).

22105760 is an apocalyptic number.

2105760 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2105760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3429216).

2105760 is an abundant number, since it is smaller than the sum of its proper divisors (4752672).

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

2105760 is a wasteful number, since it uses less digits than its factorization.

2105760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166 (or 158 counting only the distinct ones).

The product of its (nonzero) digits is 420, while the sum is 21.

The square root of 2105760 is about 1451.1237025147. The cubic root of 2105760 is about 128.1748911393.

The spelling of 2105760 in words is "two million, one hundred five thousand, seven hundred sixty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 32 40 41 48 60 80 82 96 107 120 123 160 164 205 214 240 246 321 328 410 428 480 492 535 615 642 656 820 856 984 1070 1230 1284 1312 1605 1640 1712 1968 2140 2460 2568 3210 3280 3424 3936 4280 4387 4920 5136 6420 6560 8560 8774 9840 10272 12840 13161 17120 17548 19680 21935 25680 26322 35096 43870 51360 52644 65805 70192 87740 105288 131610 140384 175480 210576 263220 350960 421152 526440 701920 1052880 2105760