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38530506 = 23747131149
BaseRepresentation
bin1001001011111…
…0110111001010
32200111112220210
42102332313022
534330434011
63453501550
7645334560
oct222766712
980445823
1038530506
111a8275a3
1210aa18b6
137ca0a21
14518da30
1535b16a6
hex24bedca

38530506 has 64 divisors (see below), whose sum is σ = 91238400. Its totient is φ = 10620480.

The previous prime is 38530501. The next prime is 38530507. The reversal of 38530506 is 60503583.

It is not an unprimeable number, because it can be changed into a prime (38530501) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 258520 + ... + 258668.

It is an arithmetic number, because the mean of its divisors is an integer number (1425600).

Almost surely, 238530506 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 38530506, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45619200).

38530506 is an abundant number, since it is smaller than the sum of its proper divisors (52707894).

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

38530506 is a wasteful number, since it uses less digits than its factorization.

38530506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 339.

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 38530506 is about 6207.2945797666. The cubic root of 38530506 is about 337.7548319558.

The spelling of 38530506 in words is "thirty-eight million, five hundred thirty thousand, five hundred six".

Divisors: 1 2 3 6 7 14 21 42 47 94 131 141 149 262 282 298 329 393 447 658 786 894 917 987 1043 1834 1974 2086 2751 3129 5502 6157 6258 7003 12314 14006 18471 19519 21009 36942 39038 42018 43099 49021 58557 86198 98042 117114 129297 136633 147063 258594 273266 294126 409899 819798 917393 1834786 2752179 5504358 6421751 12843502 19265253 38530506