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20197061069702 = 21159142910888831
BaseRepresentation
bin1001001011110011111101…
…01001101000101110000110
32122111211010220122001200212
410211321332221220232012
510121402040113212302
6110542222440435422
74153122000333656
oct445717651505606
978454126561625
1020197061069702
11648758648a420
1223223aaa78b72
13b367617814aa
144db785cb2366
1525058a2cb052
hex125e7ea68b86

20197061069702 has 32 divisors (see below), whose sum is σ = 33633424281600. Its totient is φ = 9018564559200.

The previous prime is 20197061069683. The next prime is 20197061069707. The reversal of 20197061069702 is 20796016079102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20197061069707) 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, 3589574 + ... + 7299257.

It is an arithmetic number, because the mean of its divisors is an integer number (1051044508800).

Almost surely, 220197061069702 is an apocalyptic number.

20197061069702 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20197061069702 is a deficient number, since it is larger than the sum of its proper divisors (13436363211898).

20197061069702 is a wasteful number, since it uses less digits than its factorization.

20197061069702 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10890332.

The product of its (nonzero) digits is 571536, while the sum is 50.

The spelling of 20197061069702 in words is "twenty trillion, one hundred ninety-seven billion, sixty-one million, sixty-nine thousand, seven hundred two".

Divisors: 1 2 11 22 59 118 649 1298 1429 2858 15719 31438 84311 168622 927421 1854842 10888831 21777662 119777141 239554282 642441029 1284882058 7066851319 14133702638 15560139499 31120278998 171161534489 342323068978 918048230441 1836096460882 10098530534851 20197061069702