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4987872 = 253323251
BaseRepresentation
bin10011000001101111100000
3100101102002000
4103001233200
52234102442
6254524000
760252621
oct23015740
910342060
104987872
1128a750a
121806600
131058406
1493ba48
15687d4c
hex4c1be0

4987872 has 96 divisors (see below), whose sum is σ = 15240960. Its totient is φ = 1584000.

The previous prime is 4987867. The next prime is 4987877. The reversal of 4987872 is 2787894.

It is an interprime number because it is at equal distance from previous prime (4987867) and next prime (4987877).

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

It is an Ulam number.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4987877) 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, 19747 + ... + 19997.

It is an arithmetic number, because the mean of its divisors is an integer number (158760).

Almost surely, 24987872 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 4987872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7620480).

4987872 is an abundant number, since it is smaller than the sum of its proper divisors (10253088).

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

4987872 is a wasteful number, since it uses less digits than its factorization.

4987872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 293 (or 279 counting only the distinct ones).

The product of its digits is 225792, while the sum is 45.

The square root of 4987872 is about 2233.3544277611. The cubic root of 4987872 is about 170.8592254760.

The spelling of 4987872 in words is "four million, nine hundred eighty-seven thousand, eight hundred seventy-two".

Divisors: 1 2 3 4 6 8 9 12 16 18 23 24 27 32 36 46 48 54 69 72 92 96 108 138 144 184 207 216 251 276 288 368 414 432 502 552 621 736 753 828 864 1004 1104 1242 1506 1656 2008 2208 2259 2484 3012 3312 4016 4518 4968 5773 6024 6624 6777 8032 9036 9936 11546 12048 13554 17319 18072 19872 23092 24096 27108 34638 36144 46184 51957 54216 69276 72288 92368 103914 108432 138552 155871 184736 207828 216864 277104 311742 415656 554208 623484 831312 1246968 1662624 2493936 4987872