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83200920 = 23351163031
BaseRepresentation
bin1001111010110…
…00101110011000
312210120001012120
410331120232120
5132244412140
612131141240
72030124165
oct475305630
9183501176
1083200920
1142a680a0
1223a44820
131431131a
14b09b06c
1574871d0
hex4f58b98

83200920 has 64 divisors (see below), whose sum is σ = 272298240. Its totient is φ = 20169600.

The previous prime is 83200879. The next prime is 83200969. The reversal of 83200920 is 2900238.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30196 + ... + 32835.

It is an arithmetic number, because the mean of its divisors is an integer number (4254660).

Almost surely, 283200920 is an apocalyptic number.

It is an amenable number.

83200920 is an abundant number, since it is smaller than the sum of its proper divisors (189097320).

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

83200920 is a wasteful number, since it uses less digits than its factorization.

83200920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63056 (or 63052 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 83200920 is about 9121.4538314898. The cubic root of 83200920 is about 436.5587623234.

The spelling of 83200920 in words is "eighty-three million, two hundred thousand, nine hundred twenty".

Divisors: 1 2 3 4 5 6 8 10 11 12 15 20 22 24 30 33 40 44 55 60 66 88 110 120 132 165 220 264 330 440 660 1320 63031 126062 189093 252124 315155 378186 504248 630310 693341 756372 945465 1260620 1386682 1512744 1890930 2080023 2521240 2773364 3466705 3781860 4160046 5546728 6933410 7563720 8320092 10400115 13866820 16640184 20800230 27733640 41600460 83200920