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28053246 = 2313359657
BaseRepresentation
bin110101100000…
…0111011111110
31221210020211010
41223000323332
524140200441
62441140050
7460306614
oct153007376
957706733
1028053246
1114920901
12948a626
135a72b70
143a236b4
1526e2116
hex1ac0efe

28053246 has 16 divisors (see below), whose sum is σ = 60422544. Its totient is φ = 8631744.

The previous prime is 28053217. The next prime is 28053287. The reversal of 28053246 is 64235082.

It is a super-2 number, since 2×280532462 = 1573969222273032, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

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, 179751 + ... + 179906.

It is an arithmetic number, because the mean of its divisors is an integer number (3776409).

Almost surely, 228053246 is an apocalyptic number.

28053246 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

28053246 is an abundant number, since it is smaller than the sum of its proper divisors (32369298).

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

28053246 is a wasteful number, since it uses less digits than its factorization.

28053246 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 359675.

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 28053246 is about 5296.5315065616. The cubic root of 28053246 is about 303.8512588956.

The spelling of 28053246 in words is "twenty-eight million, fifty-three thousand, two hundred forty-six".

Divisors: 1 2 3 6 13 26 39 78 359657 719314 1078971 2157942 4675541 9351082 14026623 28053246