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380212730 = 25107355339
BaseRepresentation
bin10110101010011…
…001010111111010
3222111102210210222
4112222121113322
51234313301410
6101421140042
712264516632
oct2652312772
9874383728
10380212730
111856904a7
12a73ba622
1360a03c61
14386d36c2
15235a5955
hex16a995fa

380212730 has 16 divisors (see below), whose sum is σ = 690780960. Its totient is φ = 150663312.

The previous prime is 380212673. The next prime is 380212733. The reversal of 380212730 is 37212083.

It is a self number, because there is not a number n which added to its sum of digits gives 380212730.

It is not an unprimeable number, because it can be changed into a prime (380212733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 176600 + ... + 178739.

It is an arithmetic number, because the mean of its divisors is an integer number (43173810).

Almost surely, 2380212730 is an apocalyptic number.

380212730 is a deficient number, since it is larger than the sum of its proper divisors (310568230).

380212730 is a wasteful number, since it uses less digits than its factorization.

380212730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 355453.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 380212730 is about 19499.0443355566. The cubic root of 380212730 is about 724.4507802417.

The spelling of 380212730 in words is "three hundred eighty million, two hundred twelve thousand, seven hundred thirty".

Divisors: 1 2 5 10 107 214 535 1070 355339 710678 1776695 3553390 38021273 76042546 190106365 380212730