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28574119 = 719239341
BaseRepresentation
bin110110100000…
…0000110100111
31222202201022201
41231000012213
524303332434
62500235331
7464606320
oct155000647
958681281
1028574119
1115147182
12969bb47
135bc5c82
143b1b447
152796614
hex1b401a7

28574119 has 16 divisors (see below), whose sum is σ = 35873280. Its totient is φ = 22191840.

The previous prime is 28574107. The next prime is 28574131. The reversal of 28574119 is 91147582.

It is an interprime number because it is at equal distance from previous prime (28574107) and next prime (28574131).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-28574119 is a prime.

It is a super-2 number, since 2×285741192 = 1632960553252322, 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 (28574149) 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 15 ways as a sum of consecutive naturals, for example, 1612 + ... + 7729.

It is an arithmetic number, because the mean of its divisors is an integer number (2242080).

Almost surely, 228574119 is an apocalyptic number.

28574119 is a deficient number, since it is larger than the sum of its proper divisors (7299161).

28574119 is a wasteful number, since it uses less digits than its factorization.

28574119 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9390.

The product of its digits is 20160, while the sum is 37.

The square root of 28574119 is about 5345.4764988727. The cubic root of 28574119 is about 305.7203041813.

The spelling of 28574119 in words is "twenty-eight million, five hundred seventy-four thousand, one hundred nineteen".

Divisors: 1 7 19 23 133 161 437 3059 9341 65387 177479 214843 1242353 1503901 4082017 28574119