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84245180 = 2256176827
BaseRepresentation
bin1010000010101…
…11101010111100
312212112002122212
411001113222330
5133031321210
612205355552
72042033525
oct501275274
9185462585
1084245180
1143610718
1224268bb8
13145b8726
14b28d84c
1575e1805
hex5057abc

84245180 has 24 divisors (see below), whose sum is σ = 177227568. Its totient is φ = 33638528.

The previous prime is 84245177. The next prime is 84245191. The reversal of 84245180 is 8154248.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8927 + ... + 15753.

It is an arithmetic number, because the mean of its divisors is an integer number (7384482).

Almost surely, 284245180 is an apocalyptic number.

It is an amenable number.

84245180 is an abundant number, since it is smaller than the sum of its proper divisors (92982388).

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

84245180 is a wasteful number, since it uses less digits than its factorization.

84245180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7453 (or 7451 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 32.

The square root of 84245180 is about 9178.5173094569. The cubic root of 84245180 is about 438.3775994979.

The spelling of 84245180 in words is "eighty-four million, two hundred forty-five thousand, one hundred eighty".

Divisors: 1 2 4 5 10 20 617 1234 2468 3085 6170 6827 12340 13654 27308 34135 68270 136540 4212259 8424518 16849036 21061295 42122590 84245180