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3938687268 = 2233144923581
BaseRepresentation
bin1110101011000011…
…1001100100100100
3101011111100001012020
43222300321210210
531031300443033
61450455423140
7166414201155
oct35260714444
911144301166
103938687268
11174131704a
1291b084ab0
134aa0050a9
1429515392c
15180bb36b3
hexeac39924

3938687268 has 48 divisors (see below), whose sum is σ = 9508262400. Its totient is φ = 1267660800.

The previous prime is 3938687267. The next prime is 3938687273. The reversal of 3938687268 is 8627868393.

It is not an unprimeable number, because it can be changed into a prime (3938687261) 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, 155238 + ... + 178818.

It is an arithmetic number, because the mean of its divisors is an integer number (198088800).

Almost surely, 23938687268 is an apocalyptic number.

It is an amenable number.

3938687268 is an abundant number, since it is smaller than the sum of its proper divisors (5569575132).

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

3938687268 is a wasteful number, since it uses less digits than its factorization.

3938687268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24068 (or 24066 counting only the distinct ones).

The product of its digits is 20901888, while the sum is 60.

The square root of 3938687268 is about 62758.9616548904. The cubic root of 3938687268 is about 1579.2485969381.

The spelling of 3938687268 in words is "three billion, nine hundred thirty-eight million, six hundred eighty-seven thousand, two hundred sixty-eight".

Divisors: 1 2 3 4 6 12 31 62 93 124 186 372 449 898 1347 1796 2694 5388 13919 23581 27838 41757 47162 55676 70743 83514 94324 141486 167028 282972 731011 1462022 2193033 2924044 4386066 8772132 10587869 21175738 31763607 42351476 63527214 127054428 328223939 656447878 984671817 1312895756 1969343634 3938687268