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38269421 = 47814243
BaseRepresentation
bin1001000111111…
…1000111101101
32200000021202222
42101333013231
534244110141
63444125125
7643166441
oct221770755
980007688
1038269421
111a669423
12109967a5
137c0bc38
145122821
15355e14b
hex247f1ed

38269421 has 4 divisors (see below), whose sum is σ = 39083712. Its totient is φ = 37455132.

The previous prime is 38269381. The next prime is 38269457. The reversal of 38269421 is 12496283.

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 a cyclic number.

It is not a de Polignac number, because 38269421 - 214 = 38253037 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 (38269471) 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, 407075 + ... + 407168.

It is an arithmetic number, because the mean of its divisors is an integer number (9770928).

Almost surely, 238269421 is an apocalyptic number.

It is an amenable number.

38269421 is a deficient number, since it is larger than the sum of its proper divisors (814291).

38269421 is an equidigital number, since it uses as much as digits as its factorization.

38269421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 814290.

The product of its digits is 20736, while the sum is 35.

The square root of 38269421 is about 6186.2283339689. The cubic root of 38269421 is about 336.9902200521.

The spelling of 38269421 in words is "thirty-eight million, two hundred sixty-nine thousand, four hundred twenty-one".

Divisors: 1 47 814243 38269421