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380861340 = 22356347689
BaseRepresentation
bin10110101100110…
…111101110011100
3222112122202112120
4112230313232130
51240000030330
6101443102540
712303160626
oct2654675634
9875582476
10380861340
11185a93842
12a7671a50
1360ba0252
1438821c16
1523682c10
hex16b37b9c

380861340 has 24 divisors (see below), whose sum is σ = 1066411920. Its totient is φ = 101563008.

The previous prime is 380861333. The next prime is 380861357. The reversal of 380861340 is 43168083.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3173785 + ... + 3173904.

It is an arithmetic number, because the mean of its divisors is an integer number (44433830).

Almost surely, 2380861340 is an apocalyptic number.

380861340 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

380861340 is an abundant number, since it is smaller than the sum of its proper divisors (685550580).

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

380861340 is a wasteful number, since it uses less digits than its factorization.

380861340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6347701 (or 6347699 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 380861340 is about 19515.6690892216. The cubic root of 380861340 is about 724.8624963166.

The spelling of 380861340 in words is "three hundred eighty million, eight hundred sixty-one thousand, three hundred forty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 6347689 12695378 19043067 25390756 31738445 38086134 63476890 76172268 95215335 126953780 190430670 380861340