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28070466 = 2331314947
BaseRepresentation
bin110101100010…
…1001001000010
31221211010102220
41223011021002
524141223331
62441351510
7460411044
oct153051102
957733386
1028070466
1114932836
129498596
135a7a958
143a29a94
1526e7296
hex1ac5242

28070466 has 16 divisors (see below), whose sum is σ = 56324064. Its totient is φ = 9326304.

The previous prime is 28070459. The next prime is 28070491. The reversal of 28070466 is 66407082.

It is a super-2 number, since 2×280704662 = 1575902122914312, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5596 + ... + 9351.

It is an arithmetic number, because the mean of its divisors is an integer number (3520254).

Almost surely, 228070466 is an apocalyptic number.

28070466 is an abundant number, since it is smaller than the sum of its proper divisors (28253598).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28070466 is a wasteful number, since it uses less digits than its factorization.

28070466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15265.

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 28070466 is about 5298.1568493203. The cubic root of 28070466 is about 303.9134174595.

The spelling of 28070466 in words is "twenty-eight million, seventy thousand, four hundred sixty-six".

Divisors: 1 2 3 6 313 626 939 1878 14947 29894 44841 89682 4678411 9356822 14035233 28070466