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20554243301 = 1913726332999
BaseRepresentation
bin10011001001001000…
…001101110011100101
31222001110102202010102
4103021020031303211
5314043341241201
613235324433445
71325232120404
oct231110156345
958043382112
1020554243301
118798375239
123b976a8885
131c27472657
14dcdb5b63b
1580474b26b
hex4c920dce5

20554243301 has 16 divisors (see below), whose sum is σ = 21809520000. Its totient is φ = 19316521728.

The previous prime is 20554243291. The next prime is 20554243313. The reversal of 20554243301 is 10334245502.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 20554243301 - 234 = 3374374117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20554243361) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6852200 + ... + 6855198.

It is an arithmetic number, because the mean of its divisors is an integer number (1363095000).

Almost surely, 220554243301 is an apocalyptic number.

It is an amenable number.

20554243301 is a deficient number, since it is larger than the sum of its proper divisors (1255276699).

20554243301 is a wasteful number, since it uses less digits than its factorization.

20554243301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5788.

The product of its (nonzero) digits is 14400, while the sum is 29.

Adding to 20554243301 its reverse (10334245502), we get a palindrome (30888488803).

The spelling of 20554243301 in words is "twenty billion, five hundred fifty-four million, two hundred forty-three thousand, three hundred one".

Divisors: 1 19 137 2603 2633 2999 50027 56981 360721 410863 6853699 7806397 7896367 150030973 1081802279 20554243301