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20218082810 = 2567131230353
BaseRepresentation
bin10010110101000101…
…110111010111111010
31221012000220000121212
4102311011313113322
5312401312122220
613142115403122
71314010603562
oct226505672772
957160800555
1020218082810
118635642952
123b02bb34a2
131ba2923813
14d9b253da2
157d4e980c5
hex4b51775fa

20218082810 has 32 divisors (see below), whose sum is σ = 37217835072. Its totient is φ = 7905680640.

The previous prime is 20218082803. The next prime is 20218082869. The reversal of 20218082810 is 1828081202.

It is a super-2 number, since 2×202180828102 (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27407 + ... + 202946.

It is an arithmetic number, because the mean of its divisors is an integer number (1163057346).

Almost surely, 220218082810 is an apocalyptic number.

20218082810 is a deficient number, since it is larger than the sum of its proper divisors (16999752262).

20218082810 is a wasteful number, since it uses less digits than its factorization.

20218082810 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230558.

The product of its (nonzero) digits is 4096, while the sum is 32.

The spelling of 20218082810 in words is "twenty billion, two hundred eighteen million, eighty-two thousand, eight hundred ten".

Divisors: 1 2 5 10 67 131 134 262 335 655 670 1310 8777 17554 43885 87770 230353 460706 1151765 2303530 15433651 30176243 30867302 60352486 77168255 150881215 154336510 301762430 2021808281 4043616562 10109041405 20218082810