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3861872 = 24729241
BaseRepresentation
bin1110101110110101110000
321021012111022
432232311300
51442034442
6214435012
744553050
oct16566560
97235438
103861872
1121a8533
121362a68
13a52a41
14727560
155143d2
hex3aed70

3861872 has 60 divisors (see below), whose sum is σ = 9072336. Its totient is φ = 1559040.

The previous prime is 3861863. The next prime is 3861877. The reversal of 3861872 is 2781683.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3861877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 94172 + ... + 94212.

Almost surely, 23861872 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 3861872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4536168).

3861872 is an abundant number, since it is smaller than the sum of its proper divisors (5210464).

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

3861872 is a wasteful number, since it uses less digits than its factorization.

3861872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114 (or 79 counting only the distinct ones).

The product of its digits is 16128, while the sum is 35.

The square root of 3861872 is about 1965.1646241473. The cubic root of 3861872 is about 156.8914553936.

The spelling of 3861872 in words is "three million, eight hundred sixty-one thousand, eight hundred seventy-two".

Divisors: 1 2 4 7 8 14 16 28 29 41 56 58 82 112 116 164 203 232 287 328 406 464 574 656 812 841 1148 1189 1624 1682 2296 2378 3248 3364 4592 4756 5887 6728 8323 9512 11774 13456 16646 19024 23548 33292 34481 47096 66584 68962 94192 133168 137924 241367 275848 482734 551696 965468 1930936 3861872