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980385383 = 2237438259
BaseRepresentation
bin111010011011110…
…111111001100111
32112022202201220202
4322123313321213
54001434313013
6241141021115
733203065265
oct7233677147
92468681822
10980385383
1146344705a
122343b479b
131281602c3
14942c3435
155b109858
hex3a6f7e67

980385383 has 4 divisors (see below), whose sum is σ = 980825880. Its totient is φ = 979944888.

The previous prime is 980385379. The next prime is 980385391. The reversal of 980385383 is 383583089.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 383583089 = 834621483.

It is a cyclic number.

It is not a de Polignac number, because 980385383 - 22 = 980385379 is a prime.

It is a super-2 number, since 2×9803853832 = 1922310998400113378, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (980381383) 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, 216893 + ... + 221366.

It is an arithmetic number, because the mean of its divisors is an integer number (245206470).

Almost surely, 2980385383 is an apocalyptic number.

980385383 is a deficient number, since it is larger than the sum of its proper divisors (440497).

980385383 is a wasteful number, since it uses less digits than its factorization.

980385383 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 440496.

The product of its (nonzero) digits is 622080, while the sum is 47.

The square root of 980385383 is about 31311.1063841570. The cubic root of 980385383 is about 993.4185741929.

The spelling of 980385383 in words is "nine hundred eighty million, three hundred eighty-five thousand, three hundred eighty-three".

Divisors: 1 2237 438259 980385383