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38749152 = 2531361509
BaseRepresentation
bin1001001111010…
…0001111100000
32200220122211210
42103310033200
534404433102
63502310120
7650235201
oct223641740
980818753
1038749152
111a9668a2
1210b88340
1380493c0
1452095a8
15360636c
hex24f43e0

38749152 has 96 divisors (see below), whose sum is σ = 111555360. Its totient is φ = 11704320.

The previous prime is 38749147. The next prime is 38749159. The reversal of 38749152 is 25194783.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 38749152.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38749159) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 75874 + ... + 76382.

It is an arithmetic number, because the mean of its divisors is an integer number (1162035).

Almost surely, 238749152 is an apocalyptic number.

38749152 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 38749152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55777680).

38749152 is an abundant number, since it is smaller than the sum of its proper divisors (72806208).

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

38749152 is a wasteful number, since it uses less digits than its factorization.

38749152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 596 (or 588 counting only the distinct ones).

The product of its digits is 60480, while the sum is 39.

The square root of 38749152 is about 6224.8816856226. The cubic root of 38749152 is about 338.3925041234.

The spelling of 38749152 in words is "thirty-eight million, seven hundred forty-nine thousand, one hundred fifty-two".

Divisors: 1 2 3 4 6 8 12 13 16 24 26 32 39 48 52 61 78 96 104 122 156 183 208 244 312 366 416 488 509 624 732 793 976 1018 1248 1464 1527 1586 1952 2036 2379 2928 3054 3172 4072 4758 5856 6108 6344 6617 8144 9516 12216 12688 13234 16288 19032 19851 24432 25376 26468 31049 38064 39702 48864 52936 62098 76128 79404 93147 105872 124196 158808 186294 211744 248392 317616 372588 403637 496784 635232 745176 807274 993568 1210911 1490352 1614548 2421822 2980704 3229096 4843644 6458192 9687288 12916384 19374576 38749152