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28152462288 = 243586509631
BaseRepresentation
bin11010001110000001…
…000111101111010000
32200122222211021002110
4122032001013233100
5430124012243123
620533312545320
72014433660346
oct321601075720
980588737073
1028152462288
1110a37370665
125558252240
13286869c612
141510d19996
15aeb830493
hex68e047bd0

28152462288 has 20 divisors (see below), whose sum is σ = 72727194368. Its totient is φ = 9384154080.

The previous prime is 28152462271. The next prime is 28152462311. The reversal of 28152462288 is 88226425182.

It is a super-2 number, since 2×281524622882 (a number of 22 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (48), and also a Moran number because the ratio is a prime number: 586509631 = 28152462288 / (2 + 8 + 1 + 5 + 2 + 4 + 6 + 2 + 2 + 8 + 8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 293254768 + ... + 293254863.

Almost surely, 228152462288 is an apocalyptic number.

It is an amenable number.

28152462288 is an abundant number, since it is smaller than the sum of its proper divisors (44574732080).

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

28152462288 is a wasteful number, since it uses less digits than its factorization.

28152462288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 586509642 (or 586509636 counting only the distinct ones).

The product of its digits is 983040, while the sum is 48.

The spelling of 28152462288 in words is "twenty-eight billion, one hundred fifty-two million, four hundred sixty-two thousand, two hundred eighty-eight".

Divisors: 1 2 3 4 6 8 12 16 24 48 586509631 1173019262 1759528893 2346038524 3519057786 4692077048 7038115572 9384154096 14076231144 28152462288