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7420066680 = 2335132593617
BaseRepresentation
bin1101110100100010…
…10011101101111000
3201011010011102221110
412322101103231320
5110144014113210
63224141440320
7351606345315
oct67221235570
921133142843
107420066680
113168485a14
121530b700a0
13913352100
14505665d0c
152d6643420
hex1ba453b78

7420066680 has 192 divisors, whose sum is σ = 24184020960. Its totient is φ = 1820442624.

The previous prime is 7420066663. The next prime is 7420066729. The reversal of 7420066680 is 866600247.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 12025732 + ... + 12026348.

Almost surely, 27420066680 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 7420066680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12092010480).

7420066680 is an abundant number, since it is smaller than the sum of its proper divisors (16763954280).

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

7420066680 is a wasteful number, since it uses less digits than its factorization.

7420066680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1250 (or 1233 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 39.

The square root of 7420066680 is about 86139.8089155067. The cubic root of 7420066680 is about 1950.4550049339.

The spelling of 7420066680 in words is "seven billion, four hundred twenty million, sixty-six thousand, six hundred eighty".