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20554076 = 225138519
BaseRepresentation
bin100111001101…
…0000101011100
31102200020220002
41032122011130
520230212301
62012313432
7336464264
oct116320534
942606802
1020554076
1110669644
126a72878
13434869a
142a307a4
151c1016b
hex139a15c

20554076 has 6 divisors (see below), whose sum is σ = 35969640. Its totient is φ = 10277036.

The previous prime is 20554073. The next prime is 20554097. The reversal of 20554076 is 67045502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20554073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2569256 + ... + 2569263.

It is an arithmetic number, because the mean of its divisors is an integer number (5994940).

Almost surely, 220554076 is an apocalyptic number.

It is an amenable number.

20554076 is a deficient number, since it is larger than the sum of its proper divisors (15415564).

20554076 is a wasteful number, since it uses less digits than its factorization.

20554076 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5138523 (or 5138521 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 29.

The square root of 20554076 is about 4533.6603313438. The cubic root of 20554076 is about 273.9256196065.

Adding to 20554076 its reverse (67045502), we get a palindrome (87599578).

The spelling of 20554076 in words is "twenty million, five hundred fifty-four thousand, seventy-six".

Divisors: 1 2 4 5138519 10277038 20554076