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38906756 = 2271973133
BaseRepresentation
bin1001010001101…
…0101110000100
32201012200000222
42110122232010
534430004011
63505523512
7651462530
oct224325604
981180028
1038906756
111aa64249
1211043598
1380a3065
14524abc0
153637ddb
hex251ab84

38906756 has 24 divisors (see below), whose sum is σ = 81910080. Its totient is φ = 15796512.

The previous prime is 38906743. The next prime is 38906759. The reversal of 38906756 is 65760983.

It is not an unprimeable number, because it can be changed into a prime (38906759) by changing a digit.

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, 36035 + ... + 37098.

It is an arithmetic number, because the mean of its divisors is an integer number (3412920).

Almost surely, 238906756 is an apocalyptic number.

It is an amenable number.

38906756 is an abundant number, since it is smaller than the sum of its proper divisors (43003324).

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

38906756 is a wasteful number, since it uses less digits than its factorization.

38906756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73163 (or 73161 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 44.

The square root of 38906756 is about 6237.5280360091. The cubic root of 38906756 is about 338.8506635655.

The spelling of 38906756 in words is "thirty-eight million, nine hundred six thousand, seven hundred fifty-six".

Divisors: 1 2 4 7 14 19 28 38 76 133 266 532 73133 146266 292532 511931 1023862 1389527 2047724 2779054 5558108 9726689 19453378 38906756