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38084439 = 312694813
BaseRepresentation
bin1001000101000…
…1111101010111
32122122220000210
42101101331113
534222200224
63440140503
7641466231
oct221217527
978586023
1038084439
111a552448
1210907733
137b75993
1450b5251
153524429
hex2451f57

38084439 has 4 divisors (see below), whose sum is σ = 50779256. Its totient is φ = 25389624.

The previous prime is 38084413. The next prime is 38084447. The reversal of 38084439 is 93448083.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 93448083 = 331149361.

It is not a de Polignac number, because 38084439 - 25 = 38084407 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 38084397 and 38084406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38084479) 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, 6347404 + ... + 6347409.

It is an arithmetic number, because the mean of its divisors is an integer number (12694814).

Almost surely, 238084439 is an apocalyptic number.

38084439 is a deficient number, since it is larger than the sum of its proper divisors (12694817).

38084439 is a wasteful number, since it uses less digits than its factorization.

38084439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12694816.

The product of its (nonzero) digits is 82944, while the sum is 39.

The square root of 38084439 is about 6171.2591097765. The cubic root of 38084439 is about 336.4463756196.

The spelling of 38084439 in words is "thirty-eight million, eighty-four thousand, four hundred thirty-nine".

Divisors: 1 3 12694813 38084439