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38865680 = 245769403
BaseRepresentation
bin1001010001000…
…0101100010000
32201010120200122
42110100230100
534422200210
63505005412
7651232010
oct224205420
981116618
1038865680
111aa363a7
1211023868
13808a459
145239c40
15362ab55
hex2510b10

38865680 has 40 divisors (see below), whose sum is σ = 103273152. Its totient is φ = 13325184.

The previous prime is 38865649. The next prime is 38865703. The reversal of 38865680 is 8656883.

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34142 + ... + 35261.

Almost surely, 238865680 is an apocalyptic number.

It is an amenable number.

38865680 is an abundant number, since it is smaller than the sum of its proper divisors (64407472).

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

38865680 is a wasteful number, since it uses less digits than its factorization.

38865680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69423 (or 69417 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 44.

The square root of 38865680 is about 6234.2345159610. The cubic root of 38865680 is about 338.7313738210.

The spelling of 38865680 in words is "thirty-eight million, eight hundred sixty-five thousand, six hundred eighty".

Divisors: 1 2 4 5 7 8 10 14 16 20 28 35 40 56 70 80 112 140 280 560 69403 138806 277612 347015 485821 555224 694030 971642 1110448 1388060 1943284 2429105 2776120 3886568 4858210 5552240 7773136 9716420 19432840 38865680