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3890269 = 19204751
BaseRepresentation
bin1110110101110001011101
321022122110001
432311301131
51443442034
6215214301
745031615
oct16656135
97278401
103890269
1122178a9
121377391
13a62946
14733a45
1551ca14
hex3b5c5d

3890269 has 4 divisors (see below), whose sum is σ = 4095040. Its totient is φ = 3685500.

The previous prime is 3890267. The next prime is 3890309. The reversal of 3890269 is 9620983.

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, and also an emirpimes, since its reverse is a distinct semiprime: 9620983 = 22394297.

It is a cyclic number.

It is not a de Polignac number, because 3890269 - 21 = 3890267 is a prime.

It is a super-2 number, since 2×38902692 = 30268385784722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3890261) 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, 102357 + ... + 102394.

It is an arithmetic number, because the mean of its divisors is an integer number (1023760).

Almost surely, 23890269 is an apocalyptic number.

It is an amenable number.

3890269 is a deficient number, since it is larger than the sum of its proper divisors (204771).

3890269 is a wasteful number, since it uses less digits than its factorization.

3890269 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204770.

The product of its (nonzero) digits is 23328, while the sum is 37.

The square root of 3890269 is about 1972.3764853597. The cubic root of 3890269 is about 157.2750665015.

The spelling of 3890269 in words is "three million, eight hundred ninety thousand, two hundred sixty-nine".

Divisors: 1 19 204751 3890269