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20541954 = 233423659
BaseRepresentation
bin100111001011…
…1001000000010
31102122122021010
41032113020002
520224320304
62012141350
7336414036
oct116271002
942578233
1020541954
1110660524
126a67856
134343004
142a2a1c6
151c0b789
hex1397202

20541954 has 8 divisors (see below), whose sum is σ = 41083920. Its totient is φ = 6847316.

The previous prime is 20541949. The next prime is 20541973. The reversal of 20541954 is 45914502.

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

20541954 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1711824 + ... + 1711835.

It is an arithmetic number, because the mean of its divisors is an integer number (5135490).

Almost surely, 220541954 is an apocalyptic number.

20541954 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

20541954 is a wasteful number, since it uses less digits than its factorization.

20541954 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3423664.

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 20541954 is about 4532.3232453125. The cubic root of 20541954 is about 273.8717587673.

The spelling of 20541954 in words is "twenty million, five hundred forty-one thousand, nine hundred fifty-four".

Divisors: 1 2 3 6 3423659 6847318 10270977 20541954