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20623107384837 = 3323139072387971
BaseRepresentation
bin1001011000001101100001…
…11111010110011000000101
32201000112211210221100001000
410230012300333112120011
510200342110442303322
6111510042535523513
74225653553266546
oct454066077263005
981015753840030
1020623107384837
1166312355258a1
122390a90b29599
13b6799b32b309
145142413844cd
1525b6c36763ac
hex12c1b0fd6605

20623107384837 has 32 divisors (see below), whose sum is σ = 31883437992960. Its totient is φ = 13150015884720.

The previous prime is 20623107384823. The next prime is 20623107384853. The reversal of 20623107384837 is 73848370132602.

20623107384837 is a `hidden beast` number, since 2 + 0 + 6 + 23 + 107 + 38 + 483 + 7 = 666.

It is not a de Polignac number, because 20623107384837 - 211 = 20623107382789 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20623107384937) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7442262 + ... + 9830232.

It is an arithmetic number, because the mean of its divisors is an integer number (996357437280).

Almost surely, 220623107384837 is an apocalyptic number.

20623107384837 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

It is an amenable number.

20623107384837 is a deficient number, since it is larger than the sum of its proper divisors (11260330608123).

20623107384837 is a wasteful number, since it uses less digits than its factorization.

20623107384837 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2401910 (or 2401904 counting only the distinct ones).

The product of its (nonzero) digits is 8128512, while the sum is 54.

The spelling of 20623107384837 in words is "twenty trillion, six hundred twenty-three billion, one hundred seven million, three hundred eighty-four thousand, eight hundred thirty-seven".

Divisors: 1 3 9 23 27 69 207 621 13907 41721 125163 319861 375489 959583 2387971 2878749 7163913 8636247 21491739 54923333 64475217 164769999 494309997 1482929991 33209512697 99628538091 298885614273 763818792031 896656842819 2291456376093 6874369128279 20623107384837