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83980200970 = 2525732677121
BaseRepresentation
bin100111000110110011…
…1000010110000001010
322000202201120020021201
41032031213002300022
52333442412412340
6102325135054414
76032051634031
oct1161547026012
9260681506251
1083980200970
11326856a7a76
121433897140a
137bc4913713
1440c9617718
1522b7b3279a
hex138d9c2c0a

83980200970 has 16 divisors (see below), whose sum is σ = 151752554568. Its totient is φ = 33461370880.

The previous prime is 83980200961. The next prime is 83980200973. The reversal of 83980200970 is 7900208938.

It can be written as a sum of positive squares in 4 ways, for example, as 78405040081 + 5575160889 = 280009^2 + 74667^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 83980200970.

It is not an unprimeable number, because it can be changed into a prime (83980200973) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16335991 + ... + 16341130.

Almost surely, 283980200970 is an apocalyptic number.

83980200970 is a deficient number, since it is larger than the sum of its proper divisors (67772353598).

83980200970 is a wasteful number, since it uses less digits than its factorization.

83980200970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32677385.

The product of its (nonzero) digits is 217728, while the sum is 46.

The spelling of 83980200970 in words is "eighty-three billion, nine hundred eighty million, two hundred thousand, nine hundred seventy".

Divisors: 1 2 5 10 257 514 1285 2570 32677121 65354242 163385605 326771210 8398020097 16796040194 41990100485 83980200970