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28414037 = 214313259
BaseRepresentation
bin110110001100…
…1000001010101
31222110120201202
41230121001111
524233222122
62453002245
7463341521
oct154310125
958416652
1028414037
1115047983
129623385
135b6b152
143ab8d81
152763e92
hex1b19055

28414037 has 4 divisors (see below), whose sum is σ = 28429440. Its totient is φ = 28398636.

The previous prime is 28414019. The next prime is 28414069. The reversal of 28414037 is 73041482.

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 28414037 - 214 = 28397653 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 (28414007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4487 + ... + 8772.

It is an arithmetic number, because the mean of its divisors is an integer number (7107360).

Almost surely, 228414037 is an apocalyptic number.

It is an amenable number.

28414037 is a deficient number, since it is larger than the sum of its proper divisors (15403).

28414037 is a wasteful number, since it uses less digits than its factorization.

28414037 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15402.

The product of its (nonzero) digits is 5376, while the sum is 29.

The square root of 28414037 is about 5330.4818731518. The cubic root of 28414037 is about 305.1483180806.

The spelling of 28414037 in words is "twenty-eight million, four hundred fourteen thousand, thirty-seven".

Divisors: 1 2143 13259 28414037