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20741678202 = 237493849481
BaseRepresentation
bin10011010100010011…
…001110010001111010
31222112112010102110210
4103110103032101322
5314434332200302
613310102051550
71332666233010
oct232423162172
958475112423
1020741678202
118884155913
12402a419bb6
131c5724a68b
14100a9cc8b0
15815e2266c
hex4d44ce47a

20741678202 has 16 divisors (see below), whose sum is σ = 47409550272. Its totient is φ = 5926193760.

The previous prime is 20741678173. The next prime is 20741678203. The reversal of 20741678202 is 20287614702.

It is not an unprimeable number, because it can be changed into a prime (20741678203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 246924699 + ... + 246924782.

It is an arithmetic number, because the mean of its divisors is an integer number (2963096892).

Almost surely, 220741678202 is an apocalyptic number.

20741678202 is an abundant number, since it is smaller than the sum of its proper divisors (26667872070).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20741678202 is a wasteful number, since it uses less digits than its factorization.

20741678202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 493849493.

The product of its (nonzero) digits is 75264, while the sum is 39.

The spelling of 20741678202 in words is "twenty billion, seven hundred forty-one million, six hundred seventy-eight thousand, two hundred two".

Divisors: 1 2 3 6 7 14 21 42 493849481 987698962 1481548443 2963096886 3456946367 6913892734 10370839101 20741678202