Search a number
-
+
7828608 = 273192937
BaseRepresentation
bin11101110111010010000000
3112201201211110
4131313102000
54001003413
6435443320
7123353634
oct35672200
915651743
107828608
114467827
122756540
131811418
14107adc4
15a498c3
hex777480

7828608 has 128 divisors (see below), whose sum is σ = 23256000. Its totient is φ = 2322432.

The previous prime is 7828607. The next prime is 7828621. The reversal of 7828608 is 8068287.

It is a tau number, because it is divible by the number of its divisors (128).

It is a super-2 number, since 2×78286082 = 122574206435328, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7828603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 211566 + ... + 211602.

Almost surely, 27828608 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 7828608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11628000).

7828608 is an abundant number, since it is smaller than the sum of its proper divisors (15427392).

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

7828608 is a wasteful number, since it uses less digits than its factorization.

7828608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102 (or 90 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 39.

The square root of 7828608 is about 2797.9649747629. The cubic root of 7828608 is about 198.5614104439.

The spelling of 7828608 in words is "seven million, eight hundred twenty-eight thousand, six hundred eight".

Divisors: 1 2 3 4 6 8 12 16 19 24 29 32 37 38 48 57 58 64 74 76 87 96 111 114 116 128 148 152 174 192 222 228 232 296 304 348 384 444 456 464 551 592 608 696 703 888 912 928 1073 1102 1184 1216 1392 1406 1653 1776 1824 1856 2109 2146 2204 2368 2432 2784 2812 3219 3306 3552 3648 3712 4218 4292 4408 4736 5568 5624 6438 6612 7104 7296 8436 8584 8816 11136 11248 12876 13224 14208 16872 17168 17632 20387 22496 25752 26448 33744 34336 35264 40774 44992 51504 52896 61161 67488 68672 70528 81548 89984 103008 105792 122322 134976 137344 163096 206016 211584 244644 269952 326192 412032 489288 652384 978576 1304768 1957152 2609536 3914304 7828608