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2170830144 = 26372230743
BaseRepresentation
bin1000000101100100…
…0011110101000000
312121021210121010110
42001121003311000
513421213031034
6555224231320
7104536515600
oct20131036500
95537717113
102170830144
11a144168aa
1250700b540
1328798a4a2
14168446c00
15ca8a8de9
hex81643d40

2170830144 has 84 divisors (see below), whose sum is σ = 6681423264. Its totient is φ = 620234496.

The previous prime is 2170830143. The next prime is 2170830191. The reversal of 2170830144 is 4410380712.

It is a tau number, because it is divible by the number of its divisors (84).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2170830143) by changing a digit.

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, 105964 + ... + 124779.

Almost surely, 22170830144 is an apocalyptic number.

2170830144 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2170830144 is an abundant number, since it is smaller than the sum of its proper divisors (4510593120).

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

2170830144 is a wasteful number, since it uses less digits than its factorization.

2170830144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230772 (or 230755 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 30.

The square root of 2170830144 is about 46592.1682689269. The cubic root of 2170830144 is about 1294.8176612036.

The spelling of 2170830144 in words is "two billion, one hundred seventy million, eight hundred thirty thousand, one hundred forty-four".

Divisors: 1 2 3 4 6 7 8 12 14 16 21 24 28 32 42 48 49 56 64 84 96 98 112 147 168 192 196 224 294 336 392 448 588 672 784 1176 1344 1568 2352 3136 4704 9408 230743 461486 692229 922972 1384458 1615201 1845944 2768916 3230402 3691888 4845603 5537832 6460804 7383776 9691206 11075664 11306407 12921608 14767552 19382412 22151328 22612814 25843216 33919221 38764824 44302656 45225628 51686432 67838442 77529648 90451256 103372864 135676884 155059296 180902512 271353768 310118592 361805024 542707536 723610048 1085415072 2170830144