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71885190210904 = 2372322426586221
BaseRepresentation
bin10000010110000100010011…
…001110100010010101011000
3100102112011020111121001010201
4100112010103032202111120
533410231332143222104
6412515333412151544
721066351012026650
oct2026042316422530
9312464214531121
1071885190210904
11209a5379916094
12808b9b89085b4
13311598a450015
1413a7394425360
15849d734e80a4
hex4161133a2558

71885190210904 has 48 divisors (see below), whose sum is σ = 161028261691920. Its totient is φ = 29468463055680.

The previous prime is 71885190210871. The next prime is 71885190210907. The reversal of 71885190210904 is 40901209158817.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71885190210907) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1213263487 + ... + 1213322734.

It is an arithmetic number, because the mean of its divisors is an integer number (3354755451915).

Almost surely, 271885190210904 is an apocalyptic number.

It is an amenable number.

71885190210904 is an abundant number, since it is smaller than the sum of its proper divisors (89143071481016).

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

71885190210904 is a wasteful number, since it uses less digits than its factorization.

71885190210904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2426586280 (or 2426586253 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 55.

The spelling of 71885190210904 in words is "seventy-one trillion, eight hundred eighty-five billion, one hundred ninety million, two hundred ten thousand, nine hundred four".

Divisors: 1 2 4 7 8 14 23 28 46 56 92 161 184 322 529 644 1058 1288 2116 3703 4232 7406 14812 29624 2426586221 4853172442 9706344884 16986103547 19412689768 33972207094 55811483083 67944414188 111622966166 135888828376 223245932332 390680381581 446491864664 781360763162 1283664110909 1562721526324 2567328221818 3125443052648 5134656443636 8985648776363 10269312887272 17971297552726 35942595105452 71885190210904