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20348371 = 1710311621
BaseRepresentation
bin100110110011…
…1110111010011
31102021210201101
41031213313103
520202121441
62004045231
7334646461
oct115476723
942253641
1020348371
111053903a
126993817
1342a5b74
1429b9831
151bbe231
hex1367dd3

20348371 has 8 divisors (see below), whose sum is σ = 21756384. Its totient is φ = 18963840.

The previous prime is 20348359. The next prime is 20348429. The reversal of 20348371 is 17384302.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20348371 - 213 = 20340179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20348351) 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, 4060 + ... + 7561.

It is an arithmetic number, because the mean of its divisors is an integer number (2719548).

Almost surely, 220348371 is an apocalyptic number.

20348371 is a deficient number, since it is larger than the sum of its proper divisors (1408013).

20348371 is a wasteful number, since it uses less digits than its factorization.

20348371 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11741.

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 20348371 is about 4510.9168691077. The cubic root of 20348371 is about 273.0087390477.

The spelling of 20348371 in words is "twenty million, three hundred forty-eight thousand, three hundred seventy-one".

Divisors: 1 17 103 1751 11621 197557 1196963 20348371