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47387866190 = 2572497319447
BaseRepresentation
bin101100001000100010…
…010111010001001110
311112022112122000200012
4230020202113101032
51234022243204230
633434130233222
73265213134200
oct541042272116
9145275560605
1047387866190
1119108240285
129226125812
13461283bc12
142417850770
1513753b9395
hexb0889744e

47387866190 has 48 divisors (see below), whose sum is σ = 99249445152. Its totient is φ = 16243166016.

The previous prime is 47387866159. The next prime is 47387866193. The reversal of 47387866190 is 9166878374.

It is a super-2 number, since 2×473878661902 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47387866193) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2427047 + ... + 2446493.

It is an arithmetic number, because the mean of its divisors is an integer number (2067696774).

Almost surely, 247387866190 is an apocalyptic number.

47387866190 is an abundant number, since it is smaller than the sum of its proper divisors (51861578962).

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

47387866190 is a wasteful number, since it uses less digits than its factorization.

47387866190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24441 (or 24434 counting only the distinct ones).

The product of its (nonzero) digits is 12192768, while the sum is 59.

The spelling of 47387866190 in words is "forty-seven billion, three hundred eighty-seven million, eight hundred sixty-six thousand, one hundred ninety".

Divisors: 1 2 5 7 10 14 35 49 70 98 245 490 4973 9946 19447 24865 34811 38894 49730 69622 97235 136129 174055 194470 243677 272258 348110 487354 680645 952903 1218385 1361290 1905806 2436770 4764515 9529030 96709931 193419862 483549655 676969517 967099310 1353939034 3384847585 4738786619 6769695170 9477573238 23693933095 47387866190