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20010353 = 111819123
BaseRepresentation
bin100110001010…
…1010101110001
31101122122001012
41030111111301
520110312403
61552520305
7332041136
oct114252561
941578035
1020010353
1110328090
126850095
1341b805c
14292c58d
151b53ed8
hex1315571

20010353 has 4 divisors (see below), whose sum is σ = 21829488. Its totient is φ = 18191220.

The previous prime is 20010349. The next prime is 20010359. The reversal of 20010353 is 35301002.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20010353 - 22 = 20010349 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20010359) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 909551 + ... + 909572.

It is an arithmetic number, because the mean of its divisors is an integer number (5457372).

Almost surely, 220010353 is an apocalyptic number.

It is an amenable number.

20010353 is a deficient number, since it is larger than the sum of its proper divisors (1819135).

20010353 is a wasteful number, since it uses less digits than its factorization.

20010353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1819134.

The product of its (nonzero) digits is 90, while the sum is 14.

The square root of 20010353 is about 4473.2933058318. The cubic root of 20010353 is about 271.4885908560.

Adding to 20010353 its reverse (35301002), we get a palindrome (55311355).

The spelling of 20010353 in words is "twenty million, ten thousand, three hundred fifty-three".

Divisors: 1 11 1819123 20010353