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379479890 = 2537947989
BaseRepresentation
bin10110100111100…
…110011101010010
3222110001120112202
4112213212131102
51234121324030
6101353323202
712255345236
oct2647463522
9873046482
10379479890
1118522a949
12a7106502
136080851a
14385825c6
15234ad745
hex169e6752

379479890 has 8 divisors (see below), whose sum is σ = 683063820. Its totient is φ = 151791952.

The previous prime is 379479857. The next prime is 379479907. The reversal of 379479890 is 98974973.

It can be written as a sum of positive squares in 2 ways, for example, as 378341401 + 1138489 = 19451^2 + 1067^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18973985 + ... + 18974004.

Almost surely, 2379479890 is an apocalyptic number.

379479890 is a deficient number, since it is larger than the sum of its proper divisors (303583930).

379479890 is a wasteful number, since it uses less digits than its factorization.

379479890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37947996.

The product of its (nonzero) digits is 3429216, while the sum is 56.

The square root of 379479890 is about 19480.2435816393. The cubic root of 379479890 is about 723.9850339794.

The spelling of 379479890 in words is "three hundred seventy-nine million, four hundred seventy-nine thousand, eight hundred ninety".

Divisors: 1 2 5 10 37947989 75895978 189739945 379479890