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7420328916 = 2237411131801
BaseRepresentation
bin1101110100100100…
…10011101111010100
3201011010122202122220
412322102103233110
5110144101011131
63224151222340
7351611520000
oct67222235724
921133582586
107420328916
113168644a40
1215310779b0
13913414590
145056d3700
152d6695e96
hex1ba493bd4

7420328916 has 240 divisors, whose sum is σ = 23742979008. Its totient is φ = 1778112000.

The previous prime is 7420328911. The next prime is 7420328917. The reversal of 7420328916 is 6198230247.

It is a super-4 number, since 4×74203289164 (a number of 41 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7420328911) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 4119216 + ... + 4121016.

Almost surely, 27420328916 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7420328916, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11871489504).

7420328916 is an abundant number, since it is smaller than the sum of its proper divisors (16322650092).

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

7420328916 is a wasteful number, since it uses less digits than its factorization.

7420328916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1860 (or 1837 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 42.

The square root of 7420328916 is about 86141.3310554231. The cubic root of 7420328916 is about 1950.4779819733.

The spelling of 7420328916 in words is "seven billion, four hundred twenty million, three hundred twenty-eight thousand, nine hundred sixteen".