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38810669 = 377314369
BaseRepresentation
bin1001010000001…
…1010000101101
32201000210020012
42110003100231
534413420134
63503503005
7650612432
oct224032055
981023205
1038810669
111a9a9037
1210bb7a65
13806b3c1
145223b89
1536196ce
hex250342d

38810669 has 8 divisors (see below), whose sum is σ = 40408440. Its totient is φ = 37241856.

The previous prime is 38810587. The next prime is 38810687. The reversal of 38810669 is 96601883.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 16362025 + 22448644 = 4045^2 + 4738^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 38810669 - 220 = 37762093 is a prime.

It is a super-2 number, since 2×388106692 = 3012536056455122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38810699) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4484 + ... + 9885.

It is an arithmetic number, because the mean of its divisors is an integer number (5051055).

Almost surely, 238810669 is an apocalyptic number.

It is an amenable number.

38810669 is a deficient number, since it is larger than the sum of its proper divisors (1597771).

38810669 is a wasteful number, since it uses less digits than its factorization.

38810669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14479.

The product of its (nonzero) digits is 62208, while the sum is 41.

The square root of 38810669 is about 6229.8209444574. The cubic root of 38810669 is about 338.5714833975.

The spelling of 38810669 in words is "thirty-eight million, eight hundred ten thousand, six hundred sixty-nine".

Divisors: 1 37 73 2701 14369 531653 1048937 38810669