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68795144 = 23111914093
BaseRepresentation
bin1000001100110…
…11101100001000
311210110011012022
410012123230020
5120102421034
610454304012
71463514635
oct406335410
9153404168
1068795144
11359188a0
121b058008
13113392b2
1491cb18c
15608db2e
hex419bb08

68795144 has 32 divisors (see below), whose sum is σ = 141488640. Its totient is φ = 31099200.

The previous prime is 68795123. The next prime is 68795197. The reversal of 68795144 is 44159786.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a junction number, because it is equal to n+sod(n) for n = 68795095 and 68795104.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 14762 + ... + 18854.

It is an arithmetic number, because the mean of its divisors is an integer number (4421520).

Almost surely, 268795144 is an apocalyptic number.

It is an amenable number.

68795144 is an abundant number, since it is smaller than the sum of its proper divisors (72693496).

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

68795144 is a wasteful number, since it uses less digits than its factorization.

68795144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4301 (or 4297 counting only the distinct ones).

The product of its digits is 241920, while the sum is 44.

The square root of 68795144 is about 8294.2838147727. The cubic root of 68795144 is about 409.7502822011.

The spelling of 68795144 in words is "sixty-eight million, seven hundred ninety-five thousand, one hundred forty-four".

Divisors: 1 2 4 8 11 22 44 88 191 382 764 1528 2101 4093 4202 8186 8404 16372 16808 32744 45023 90046 180092 360184 781763 1563526 3127052 6254104 8599393 17198786 34397572 68795144