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20059340 = 2257143281
BaseRepresentation
bin100110010000…
…1010011001100
31101202010020112
41030201103030
520113344330
61553535152
7332334020
oct114412314
941663215
1020059340
1110360974
1268744b8
134204442
142942380
151b63795
hex13214cc

20059340 has 24 divisors (see below), whose sum is σ = 48142752. Its totient is φ = 6877440.

The previous prime is 20059327. The next prime is 20059343. The reversal of 20059340 is 4395002.

It is not an unprimeable number, because it can be changed into a prime (20059343) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71501 + ... + 71780.

It is an arithmetic number, because the mean of its divisors is an integer number (2005948).

Almost surely, 220059340 is an apocalyptic number.

20059340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20059340 is an abundant number, since it is smaller than the sum of its proper divisors (28083412).

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

20059340 is a wasteful number, since it uses less digits than its factorization.

20059340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143297 (or 143295 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 20059340 is about 4478.7654548994. The cubic root of 20059340 is about 271.7099524957.

The spelling of 20059340 in words is "twenty million, fifty-nine thousand, three hundred forty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 143281 286562 573124 716405 1002967 1432810 2005934 2865620 4011868 5014835 10029670 20059340