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20455001412423 = 347655122144853
BaseRepresentation
bin1001010011010100011010…
…00101111101001101000111
32200102110221012220010022120
410221222031011331031013
510140113320330144143
6111300521541301023
74210553001144654
oct451521505751507
980373835803276
1020455001412423
116576a10044686
122364396704773
13b54b8a8c6516
1450a05509cc2b
15257135259383
hex129a8d17d347

20455001412423 has 16 divisors (see below), whose sum is σ = 27857872014336. Its totient is φ = 13344487815200.

The previous prime is 20455001412343. The next prime is 20455001412493. The reversal of 20455001412423 is 32421410055402.

It is a cyclic number.

It is not a de Polignac number, because 20455001412423 - 210 = 20455001411399 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20455001412493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10148736 + ... + 11996117.

It is an arithmetic number, because the mean of its divisors is an integer number (1741117000896).

Almost surely, 220455001412423 is an apocalyptic number.

20455001412423 is a deficient number, since it is larger than the sum of its proper divisors (7402870601913).

20455001412423 is a wasteful number, since it uses less digits than its factorization.

20455001412423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22151454.

The product of its (nonzero) digits is 38400, while the sum is 33.

Adding to 20455001412423 its reverse (32421410055402), we get a palindrome (52876411467825).

The spelling of 20455001412423 in words is "twenty trillion, four hundred fifty-five billion, one million, four hundred twelve thousand, four hundred twenty-three".

Divisors: 1 3 47 141 6551 19653 307897 923691 22144853 66434559 1040808091 3122424273 145070932003 435212796009 6818333804141 20455001412423