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38011272 = 23313235297
BaseRepresentation
bin1001000100000…
…0000110001000
32122112011122220
42101000012020
534212330042
63434414040
7641043015
oct221000610
978464586
1038011272
111a502482
1210891320
137b4b5a0
14509670c
15350c8ec
hex2440188

38011272 has 64 divisors (see below), whose sum is σ = 106807680. Its totient is φ = 11185152.

The previous prime is 38011271. The next prime is 38011283. The reversal of 38011272 is 27211083.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (38011271) 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, 4528 + ... + 9824.

It is an arithmetic number, because the mean of its divisors is an integer number (1668870).

Almost surely, 238011272 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 38011272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53403840).

38011272 is an abundant number, since it is smaller than the sum of its proper divisors (68796408).

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

38011272 is a wasteful number, since it uses less digits than its factorization.

38011272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5342 (or 5338 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 24.

The square root of 38011272 is about 6165.3282151074. The cubic root of 38011272 is about 336.2307796626.

It can be divided in two parts, 38011 and 272, that added together give a palindrome (38283).

The spelling of 38011272 in words is "thirty-eight million, eleven thousand, two hundred seventy-two".

Divisors: 1 2 3 4 6 8 12 13 23 24 26 39 46 52 69 78 92 104 138 156 184 276 299 312 552 598 897 1196 1794 2392 3588 5297 7176 10594 15891 21188 31782 42376 63564 68861 121831 127128 137722 206583 243662 275444 365493 413166 487324 550888 730986 826332 974648 1461972 1583803 1652664 2923944 3167606 4751409 6335212 9502818 12670424 19005636 38011272