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380676780 = 2233511193373
BaseRepresentation
bin10110101100001…
…010101010101100
3222112022101101000
4112230022222230
51234423124110
6101435120300
712301461561
oct2654125254
9875271330
10380676780
11185978110
12a75a3090
1360b37243
14387b4868
15236481c0
hex16b0aaac

380676780 has 192 divisors, whose sum is σ = 1360396800. Its totient is φ = 87402240.

The previous prime is 380676701. The next prime is 380676809. The reversal of 380676780 is 87676083.

380676780 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 111174 + ... + 114546.

It is an arithmetic number, because the mean of its divisors is an integer number (7085400).

Almost surely, 2380676780 is an apocalyptic number.

380676780 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 380676780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (680198400).

380676780 is an abundant number, since it is smaller than the sum of its proper divisors (979720020).

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

380676780 is a wasteful number, since it uses less digits than its factorization.

380676780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3421 (or 3413 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 45.

The square root of 380676780 is about 19510.9400081083. The cubic root of 380676780 is about 724.7453913728.

The spelling of 380676780 in words is "three hundred eighty million, six hundred seventy-six thousand, seven hundred eighty".