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38345673 = 312781891
BaseRepresentation
bin1001001001000…
…1101111001001
32200011011101010
42102101233021
534304030143
63445514133
7643634652
oct222215711
980134333
1038345673
111a710743
1210a12949
137c37862
145142529
153576a33
hex2491bc9

38345673 has 4 divisors (see below), whose sum is σ = 51127568. Its totient is φ = 25563780.

The previous prime is 38345633. The next prime is 38345683. The reversal of 38345673 is 37654383.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 38345673 - 29 = 38345161 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (38345633) 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, 6390943 + ... + 6390948.

It is an arithmetic number, because the mean of its divisors is an integer number (12781892).

Almost surely, 238345673 is an apocalyptic number.

It is an amenable number.

38345673 is a deficient number, since it is larger than the sum of its proper divisors (12781895).

38345673 is a wasteful number, since it uses less digits than its factorization.

38345673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12781894.

The product of its digits is 181440, while the sum is 39.

The square root of 38345673 is about 6192.3883114676. The cubic root of 38345673 is about 337.2138897591.

It can be divided in two parts, 383 and 45673, that added together give a triangular number (46056 = T303).

The spelling of 38345673 in words is "thirty-eight million, three hundred forty-five thousand, six hundred seventy-three".

Divisors: 1 3 12781891 38345673