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20464122164045 = 572233631609967
BaseRepresentation
bin1001010011100101011001…
…01110110111001101001101
32200110100110212012022102012
410221302230232313031031
510140241010233222140
6111305030554511005
74211325011230400
oct451625456671515
980410425168365
1020464122164045
11657a87051033a
122366101135465
13b559b23a4881
1450a67c547d37
152574bad39265
hex129cacbb734d

20464122164045 has 24 divisors (see below), whose sum is σ = 29808254617344. Its totient is φ = 13422430434336.

The previous prime is 20464122164029. The next prime is 20464122164131. The reversal of 20464122164045 is 54046122146402.

It is not a de Polignac number, because 20464122164045 - 24 = 20464122164029 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20464122163993 and 20464122164011.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1815799349 + ... + 1815810618.

It is an arithmetic number, because the mean of its divisors is an integer number (1242010609056).

Almost surely, 220464122164045 is an apocalyptic number.

It is an amenable number.

20464122164045 is a deficient number, since it is larger than the sum of its proper divisors (9344132453299).

20464122164045 is a wasteful number, since it uses less digits than its factorization.

20464122164045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3631610009 (or 3631610002 counting only the distinct ones).

The product of its (nonzero) digits is 368640, while the sum is 41.

The spelling of 20464122164045 in words is "twenty trillion, four hundred sixty-four billion, one hundred twenty-two million, one hundred sixty-four thousand, forty-five".

Divisors: 1 5 7 23 35 49 115 161 245 805 1127 5635 3631609967 18158049835 25421269769 83527029241 127106348845 177948888383 417635146205 584689204687 889744441915 2923446023435 4092824432809 20464122164045