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38080040 = 235952001
BaseRepresentation
bin1001000101000…
…0111000101000
32122122122222212
42101100320220
534222030130
63440104252
7641450345
oct221207050
978578885
1038080040
111a54a109
1210905088
137b7398b
1450b37cc
153522e95
hex2450e28

38080040 has 16 divisors (see below), whose sum is σ = 85680180. Its totient is φ = 15232000.

The previous prime is 38080037. The next prime is 38080057. The reversal of 38080040 is 4008083.

It can be written as a sum of positive squares in 2 ways, for example, as 34975396 + 3104644 = 5914^2 + 1762^2 .

It is a junction number, because it is equal to n+sod(n) for n = 38079988 and 38080015.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 475961 + ... + 476040.

Almost surely, 238080040 is an apocalyptic number.

It is an amenable number.

38080040 is an abundant number, since it is smaller than the sum of its proper divisors (47600140).

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

38080040 is a wasteful number, since it uses less digits than its factorization.

38080040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 952012 (or 952008 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 38080040 is about 6170.9026892344. The cubic root of 38080040 is about 336.4334212071.

The spelling of 38080040 in words is "thirty-eight million, eighty thousand, forty".

Divisors: 1 2 4 5 8 10 20 40 952001 1904002 3808004 4760005 7616008 9520010 19040020 38080040