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2379181340 = 225149798383
BaseRepresentation
bin1000110111001111…
…0110110100011100
320010210211221020102
42031303312310130
514333032300330
61032030040232
7112646464514
oct21563666434
96123757212
102379181340
111010a93178
12564949078
132bbba9a13
14187da0844
15ddd12945
hex8dcf6d1c

2379181340 has 24 divisors (see below), whose sum is σ = 5029819200. Its totient is φ = 945284288.

The previous prime is 2379181309. The next prime is 2379181367. The reversal of 2379181340 is 431819732.

It is a junction number, because it is equal to n+sod(n) for n = 2379181294 and 2379181303.

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, 396212 + ... + 402171.

It is an arithmetic number, because the mean of its divisors is an integer number (209575800).

Almost surely, 22379181340 is an apocalyptic number.

2379181340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2379181340 is an abundant number, since it is smaller than the sum of its proper divisors (2650637860).

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

2379181340 is a wasteful number, since it uses less digits than its factorization.

2379181340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 798541 (or 798539 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 2379181340 is about 48776.8525019809. The cubic root of 2379181340 is about 1334.9833473868.

The spelling of 2379181340 in words is "two billion, three hundred seventy-nine million, one hundred eighty-one thousand, three hundred forty".

Divisors: 1 2 4 5 10 20 149 298 596 745 1490 2980 798383 1596766 3193532 3991915 7983830 15967660 118959067 237918134 475836268 594795335 1189590670 2379181340