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13128024 = 2337136011
BaseRepresentation
bin110010000101…
…000101011000
3220200222021010
4302011011120
511330044044
61145213520
7216405060
oct62050530
926628233
1013128024
117457308
1244912a0
132948580
141a5a3a0
151244bb9
hexc85158

13128024 has 64 divisors (see below), whose sum is σ = 40400640. Its totient is φ = 3461760.

The previous prime is 13128013. The next prime is 13128061. The reversal of 13128024 is 42082131.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 822 + ... + 5189.

It is an arithmetic number, because the mean of its divisors is an integer number (631260).

Almost surely, 213128024 is an apocalyptic number.

13128024 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13128024, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20200320).

13128024 is an abundant number, since it is smaller than the sum of its proper divisors (27272616).

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

13128024 is a wasteful number, since it uses less digits than its factorization.

13128024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6040 (or 6036 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 13128024 is about 3623.2615141610. The cubic root of 13128024 is about 235.9028135696.

The spelling of 13128024 in words is "thirteen million, one hundred twenty-eight thousand, twenty-four".

Divisors: 1 2 3 4 6 7 8 12 13 14 21 24 26 28 39 42 52 56 78 84 91 104 156 168 182 273 312 364 546 728 1092 2184 6011 12022 18033 24044 36066 42077 48088 72132 78143 84154 126231 144264 156286 168308 234429 252462 312572 336616 468858 504924 547001 625144 937716 1009848 1094002 1641003 1875432 2188004 3282006 4376008 6564012 13128024