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880378005 = 35134514759
BaseRepresentation
bin110100011110011…
…000000010010101
32021100120211120210
4310132120002111
53300334044010
6223205320033
730550042503
oct6436300225
92240524523
10880378005
11411a50031
12206a06019
13110516340
1484ccd673
1552452b20
hex34798095

880378005 has 16 divisors (see below), whose sum is σ = 1516959360. Its totient is φ = 433416768.

The previous prime is 880378003. The next prime is 880378007. The reversal of 880378005 is 500873088.

It is an interprime number because it is at equal distance from previous prime (880378003) and next prime (880378007).

It is not a de Polignac number, because 880378005 - 21 = 880378003 is a prime.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (880378003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2257185 + ... + 2257574.

It is an arithmetic number, because the mean of its divisors is an integer number (94809960).

Almost surely, 2880378005 is an apocalyptic number.

It is an amenable number.

880378005 is a deficient number, since it is larger than the sum of its proper divisors (636581355).

880378005 is a wasteful number, since it uses less digits than its factorization.

880378005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4514780.

The product of its (nonzero) digits is 53760, while the sum is 39.

The square root of 880378005 is about 29671.1645373079. The cubic root of 880378005 is about 958.4211624272.

It can be divided in two parts, 880 and 378005, that added together give a triangular number (378885 = T870).

The spelling of 880378005 in words is "eight hundred eighty million, three hundred seventy-eight thousand, five".

Divisors: 1 3 5 13 15 39 65 195 4514759 13544277 22573795 58691867 67721385 176075601 293459335 880378005