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320141420 = 22561262411
BaseRepresentation
bin10011000101001…
…111100001101100
3211022101212110122
4103011033201230
51123424011140
651433424112
710635104624
oct2305174154
9738355418
10320141420
11154790a95
128b26b038
13514306c1
1430737884
151d18bab5
hex1314f86c

320141420 has 24 divisors (see below), whose sum is σ = 683320848. Its totient is φ = 125956800.

The previous prime is 320141383. The next prime is 320141443. The reversal of 320141420 is 24141023.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 129986 + ... + 132425.

It is an arithmetic number, because the mean of its divisors is an integer number (28471702).

Almost surely, 2320141420 is an apocalyptic number.

It is an amenable number.

320141420 is an abundant number, since it is smaller than the sum of its proper divisors (363179428).

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

320141420 is a wasteful number, since it uses less digits than its factorization.

320141420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262481 (or 262479 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 320141420 is about 17892.4961925384. The cubic root of 320141420 is about 684.0911241637.

Adding to 320141420 its reverse (24141023), we get a palindrome (344282443).

The spelling of 320141420 in words is "three hundred twenty million, one hundred forty-one thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 61 122 244 305 610 1220 262411 524822 1049644 1312055 2624110 5248220 16007071 32014142 64028284 80035355 160070710 320141420