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28053419 = 318310903
BaseRepresentation
bin110101100000…
…0111110101011
31221210021001112
41223000332223
524140202134
62441140535
7460310252
oct153007653
957707045
1028053419
1114920a49
12948a74b
135a72c74
143a23799
1526e21ce
hex1ac0fab

28053419 has 8 divisors (see below), whose sum is σ = 29309952. Its totient is φ = 26818920.

The previous prime is 28053413. The next prime is 28053427. The reversal of 28053419 is 91435082.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 28053419 - 212 = 28049323 is a prime.

It is a super-2 number, since 2×280534192 = 1573988635179122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28053413) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2879 + ... + 8024.

It is an arithmetic number, because the mean of its divisors is an integer number (3663744).

Almost surely, 228053419 is an apocalyptic number.

28053419 is a deficient number, since it is larger than the sum of its proper divisors (1256533).

28053419 is a wasteful number, since it uses less digits than its factorization.

28053419 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11017.

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 28053419 is about 5296.5478379790. The cubic root of 28053419 is about 303.8518834954.

The spelling of 28053419 in words is "twenty-eight million, fifty-three thousand, four hundred nineteen".

Divisors: 1 31 83 2573 10903 337993 904949 28053419