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38518068 = 2235371853
BaseRepresentation
bin1001001011101…
…1110100110100
32200110220212010
42102323310310
534330034233
63453324220
7645253401
oct222736464
980426763
1038518068
111a819216
1210a96670
137c98174
1451892a8
1535acb63
hex24bbd34

38518068 has 48 divisors (see below), whose sum is σ = 92969856. Its totient is φ = 12405120.

The previous prime is 38518063. The next prime is 38518079. The reversal of 38518068 is 86081583.

It is a happy number.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38518063) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44730 + ... + 45582.

It is an arithmetic number, because the mean of its divisors is an integer number (1936872).

Almost surely, 238518068 is an apocalyptic number.

It is an amenable number.

38518068 is an abundant number, since it is smaller than the sum of its proper divisors (54451788).

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

38518068 is a wasteful number, since it uses less digits than its factorization.

38518068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 984 (or 982 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 39.

The square root of 38518068 is about 6206.2926131468. The cubic root of 38518068 is about 337.7184845940.

The spelling of 38518068 in words is "thirty-eight million, five hundred eighteen thousand, sixty-eight".

Divisors: 1 2 3 4 6 12 53 71 106 142 159 212 213 284 318 426 636 852 853 1706 2559 3412 3763 5118 7526 10236 11289 15052 22578 45156 45209 60563 90418 121126 135627 180836 181689 242252 271254 363378 542508 726756 3209839 6419678 9629517 12839356 19259034 38518068