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85731552460 = 2254286577623
BaseRepresentation
bin100111111010111111…
…1111010110011001100
322012021210001002212201
41033311333322303030
52401034234134320
6103215020411244
76123336113041
oct1176577726314
9265253032781
1085731552460
11333a42542a4
12147473a6b24
1381136cc588
1442140691c8
15236b77b70a
hex13f5ffaccc

85731552460 has 12 divisors (see below), whose sum is σ = 180036260208. Its totient is φ = 34292620976.

The previous prime is 85731552443. The next prime is 85731552479. The reversal of 85731552460 is 6425513758.

It is a self number, because there is not a number n which added to its sum of digits gives 85731552460.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2143288792 + ... + 2143288831.

It is an arithmetic number, because the mean of its divisors is an integer number (15003021684).

Almost surely, 285731552460 is an apocalyptic number.

It is an amenable number.

85731552460 is an abundant number, since it is smaller than the sum of its proper divisors (94304707748).

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

85731552460 is a wasteful number, since it uses less digits than its factorization.

85731552460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4286577632 (or 4286577630 counting only the distinct ones).

The product of its (nonzero) digits is 1008000, while the sum is 46.

The spelling of 85731552460 in words is "eighty-five billion, seven hundred thirty-one million, five hundred fifty-two thousand, four hundred sixty".

Divisors: 1 2 4 5 10 20 4286577623 8573155246 17146310492 21432888115 42865776230 85731552460