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379983620 = 22518999181
BaseRepresentation
bin10110101001100…
…001011100000100
3222111000011112102
4112221201130010
51234233433440
6101412211232
712262543652
oct2651413404
9874004472
10379983620
11185544355
12a7309b18
13609538a3
1438673dd2
152355cb15
hex16a61704

379983620 has 12 divisors (see below), whose sum is σ = 797965644. Its totient is φ = 151993440.

The previous prime is 379983589. The next prime is 379983649. The reversal of 379983620 is 26389973.

It can be written as a sum of positive squares in 2 ways, for example, as 76457536 + 303526084 = 8744^2 + 17422^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9499571 + ... + 9499610.

It is an arithmetic number, because the mean of its divisors is an integer number (66497137).

Almost surely, 2379983620 is an apocalyptic number.

It is an amenable number.

379983620 is an abundant number, since it is smaller than the sum of its proper divisors (417982024).

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

379983620 is a wasteful number, since it uses less digits than its factorization.

379983620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18999190 (or 18999188 counting only the distinct ones).

The product of its (nonzero) digits is 489888, while the sum is 47.

The square root of 379983620 is about 19493.1685469551. The cubic root of 379983620 is about 724.3052369225.

The spelling of 379983620 in words is "three hundred seventy-nine million, nine hundred eighty-three thousand, six hundred twenty".

Divisors: 1 2 4 5 10 20 18999181 37998362 75996724 94995905 189991810 379983620