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38780752 = 2431411907
BaseRepresentation
bin1001001111101…
…1111101010000
32200222021012011
42103323331100
534411441002
63503112304
7650426263
oct223737520
980867164
1038780752
111a98860a
1210ba2694
13805a8ba
145216cda
1536108d7
hex24fbf50

38780752 has 40 divisors (see below), whose sum is σ = 79494912. Its totient is φ = 18297600.

The previous prime is 38780741. The next prime is 38780761. The reversal of 38780752 is 25708783.

It is a congruent number.

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, 19383 + ... + 21289.

Almost surely, 238780752 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 38780752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39747456).

38780752 is an abundant number, since it is smaller than the sum of its proper divisors (40714160).

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

38780752 is a wasteful number, since it uses less digits than its factorization.

38780752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1987 (or 1981 counting only the distinct ones).

The product of its (nonzero) digits is 94080, while the sum is 40.

The square root of 38780752 is about 6227.4193692090. The cubic root of 38780752 is about 338.4844656857.

The spelling of 38780752 in words is "thirty-eight million, seven hundred eighty thousand, seven hundred fifty-two".

Divisors: 1 2 4 8 16 31 41 62 82 124 164 248 328 496 656 1271 1907 2542 3814 5084 7628 10168 15256 20336 30512 59117 78187 118234 156374 236468 312748 472936 625496 945872 1250992 2423797 4847594 9695188 19390376 38780752