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38340379 = 7112321649
BaseRepresentation
bin1001001001000…
…0011100011011
32200010220010001
42102100130123
534303343004
63445433431
7643613350
oct222203433
980126101
1038340379
111a707770
1210a0b877
137c3531c
145140627
1535751a4
hex249071b

38340379 has 16 divisors (see below), whose sum is σ = 49881600. Its totient is φ = 28575360.

The previous prime is 38340373. The next prime is 38340427. The reversal of 38340379 is 97304383.

It is not a de Polignac number, because 38340379 - 211 = 38338331 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38340373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9054 + ... + 12595.

It is an arithmetic number, because the mean of its divisors is an integer number (3117600).

Almost surely, 238340379 is an apocalyptic number.

38340379 is a deficient number, since it is larger than the sum of its proper divisors (11541221).

38340379 is a wasteful number, since it uses less digits than its factorization.

38340379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21690.

The product of its (nonzero) digits is 54432, while the sum is 37.

The square root of 38340379 is about 6191.9608364395. The cubic root of 38340379 is about 337.1983704723.

The spelling of 38340379 in words is "thirty-eight million, three hundred forty thousand, three hundred seventy-nine".

Divisors: 1 7 11 23 77 161 253 1771 21649 151543 238139 497927 1666973 3485489 5477197 38340379