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380362949 = 894273741
BaseRepresentation
bin10110101010111…
…110000011000101
3222111201102212122
4112222332003011
51234333103244
6101424255325
712266013611
oct2652760305
9874642778
10380362949
1118578334a
12a7471545
1360a57445
1438732341
15235d51ee
hex16abe0c5

380362949 has 4 divisors (see below), whose sum is σ = 384636780. Its totient is φ = 376089120.

The previous prime is 380362943. The next prime is 380362979. The reversal of 380362949 is 949263083.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 949263083 = 3725655759.

It can be written as a sum of positive squares in 2 ways, for example, as 150234049 + 230128900 = 12257^2 + 15170^2 .

It is a cyclic number.

It is not a de Polignac number, because 380362949 - 220 = 379314373 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (380362943) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2136782 + ... + 2136959.

It is an arithmetic number, because the mean of its divisors is an integer number (96159195).

Almost surely, 2380362949 is an apocalyptic number.

It is an amenable number.

380362949 is a deficient number, since it is larger than the sum of its proper divisors (4273831).

380362949 is an equidigital number, since it uses as much as digits as its factorization.

380362949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4273830.

The product of its (nonzero) digits is 279936, while the sum is 44.

The square root of 380362949 is about 19502.8959131715. The cubic root of 380362949 is about 724.5461759103.

The spelling of 380362949 in words is "three hundred eighty million, three hundred sixty-two thousand, nine hundred forty-nine".

Divisors: 1 89 4273741 380362949