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74680543209 = 353857354787
BaseRepresentation
bin100010110001101001…
…1101010011111101001
321010202121121200002210
41011203103222133221
52210421204340314
654150251115333
75252440100136
oct1054323523751
9233677550083
1074680543209
11297432464a8
1212582442b49
13707205534c
1438864bb58d
151e214b3559
hex11634ea7e9

74680543209 has 16 divisors (see below), whose sum is σ = 101466499392. Its totient is φ = 48841061568.

The previous prime is 74680543199. The next prime is 74680543229. The reversal of 74680543209 is 90234508647.

It is not a de Polignac number, because 74680543209 - 215 = 74680510441 is a prime.

It is not an unprimeable number, because it can be changed into a prime (74680543229) 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, 1335714 + ... + 1390500.

It is an arithmetic number, because the mean of its divisors is an integer number (6341656212).

Almost surely, 274680543209 is an apocalyptic number.

It is an amenable number.

74680543209 is a deficient number, since it is larger than the sum of its proper divisors (26785956183).

74680543209 is a wasteful number, since it uses less digits than its factorization.

74680543209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63416.

The product of its (nonzero) digits is 1451520, while the sum is 48.

The spelling of 74680543209 in words is "seventy-four billion, six hundred eighty million, five hundred forty-three thousand, two hundred nine".

Divisors: 1 3 53 159 8573 25719 54787 164361 454369 1363107 2903711 8711133 469688951 1409066853 24893514403 74680543209