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20373054632671 = 139433993116729
BaseRepresentation
bin1001010000111011110001…
…01011110011001011011111
32200010122102012120101112211
410220131320223303023133
510132243003441221141
6111155130241341251
74201622200050436
oct450357053631337
980118365511484
1020373054632671
116545189241114
122350526937827
13b4a22b35c430
145060bd96011d
15254e3addbd81
hex128778af32df

20373054632671 has 16 divisors (see below), whose sum is σ = 21946059859360. Its totient is φ = 18800885583360.

The previous prime is 20373054632597. The next prime is 20373054632699. The reversal of 20373054632671 is 17623645037302.

It is a cyclic number.

It is not a de Polignac number, because 20373054632671 - 211 = 20373054630623 is a prime.

It is a super-2 number, since 2×203730546326712 (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20373054632071) 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, 1217820235 + ... + 1217836963.

It is an arithmetic number, because the mean of its divisors is an integer number (1371628741210).

Almost surely, 220373054632671 is an apocalyptic number.

20373054632671 is a deficient number, since it is larger than the sum of its proper divisors (1573005226689).

20373054632671 is a wasteful number, since it uses less digits than its factorization.

20373054632671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36106.

The product of its (nonzero) digits is 3810240, while the sum is 49.

Adding to 20373054632671 its reverse (17623645037302), we get a palindrome (37996699669973).

The spelling of 20373054632671 in words is "twenty trillion, three hundred seventy-three billion, fifty-four million, six hundred thirty-two thousand, six hundred seventy-one".

Divisors: 1 13 9433 9931 16729 122629 129103 217477 93679123 157804657 166135699 1217828599 2051460541 2159764087 1567158048667 20373054632671