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83948680 = 2352098717
BaseRepresentation
bin1010000000011…
…11010010001000
312211222000221101
411000033102020
5132442324210
612155151144
72036360224
oct500172210
9184860841
1083948680
1143428982
12241454b4
131451379a
14b213784
157583a3a
hex500f488

83948680 has 16 divisors (see below), whose sum is σ = 188884620. Its totient is φ = 33579456.

The previous prime is 83948647. The next prime is 83948687. The reversal of 83948680 is 8684938.

It can be written as a sum of positive squares in 2 ways, for example, as 69856164 + 14092516 = 8358^2 + 3754^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 83948680.

It is not an unprimeable number, because it can be changed into a prime (83948687) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1049319 + ... + 1049398.

Almost surely, 283948680 is an apocalyptic number.

It is an amenable number.

83948680 is an abundant number, since it is smaller than the sum of its proper divisors (104935940).

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

83948680 is a wasteful number, since it uses less digits than its factorization.

83948680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2098728 (or 2098724 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 46.

The square root of 83948680 is about 9162.3512266230. The cubic root of 83948680 is about 437.8627065643.

The spelling of 83948680 in words is "eighty-three million, nine hundred forty-eight thousand, six hundred eighty".

Divisors: 1 2 4 5 8 10 20 40 2098717 4197434 8394868 10493585 16789736 20987170 41974340 83948680