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38954090 = 257556487
BaseRepresentation
bin1001010010011…
…0010001101010
32201022001222002
42110212101222
534433012330
63510531002
7652050530
oct224462152
981261862
1038954090
111aa9686a
1211066a62
1380bb776
145260150
153646e45
hex252646a

38954090 has 16 divisors (see below), whose sum is σ = 80134272. Its totient is φ = 13355664.

The previous prime is 38954077. The next prime is 38954107. The reversal of 38954090 is 9045983.

It is a super-2 number, since 2×389540902 = 3034842255456200, which contains 22 as substring.

It is an unprimeable number.

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, 278174 + ... + 278313.

It is an arithmetic number, because the mean of its divisors is an integer number (5008392).

Almost surely, 238954090 is an apocalyptic number.

38954090 is an abundant number, since it is smaller than the sum of its proper divisors (41180182).

38954090 is a wasteful number, since it uses less digits than its factorization.

38954090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 556501.

The product of its (nonzero) digits is 38880, while the sum is 38.

The square root of 38954090 is about 6241.3211742387. The cubic root of 38954090 is about 338.9880232337.

The spelling of 38954090 in words is "thirty-eight million, nine hundred fifty-four thousand, ninety".

Divisors: 1 2 5 7 10 14 35 70 556487 1112974 2782435 3895409 5564870 7790818 19477045 38954090