Search a number
-
+
7928064 = 28333137
BaseRepresentation
bin11110001111100100000000
3112220210021000
4132033210000
54012144224
6441532000
7124246614
oct36174400
915823230
107928064
114525521
1227a4000
131847781
1410a5344
15a690c9
hex78f900

7928064 has 144 divisors (see below), whose sum is σ = 24855040. Its totient is φ = 2488320.

The previous prime is 7928059. The next prime is 7928083. The reversal of 7928064 is 4608297.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 214254 + ... + 214290.

Almost surely, 27928064 is an apocalyptic number.

7928064 is a gapful number since it is divisible by the number (74) 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 7928064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12427520).

7928064 is an abundant number, since it is smaller than the sum of its proper divisors (16926976).

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

7928064 is a wasteful number, since it uses less digits than its factorization.

7928064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93 (or 73 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 7928064 is about 2815.6818002040. The cubic root of 7928064 is about 199.3987275017.

The spelling of 7928064 in words is "seven million, nine hundred twenty-eight thousand, sixty-four".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 27 31 32 36 37 48 54 62 64 72 74 93 96 108 111 124 128 144 148 186 192 216 222 248 256 279 288 296 333 372 384 432 444 496 558 576 592 666 744 768 837 864 888 992 999 1116 1147 1152 1184 1332 1488 1674 1728 1776 1984 1998 2232 2294 2304 2368 2664 2976 3348 3441 3456 3552 3968 3996 4464 4588 4736 5328 5952 6696 6882 6912 7104 7936 7992 8928 9176 9472 10323 10656 11904 13392 13764 14208 15984 17856 18352 20646 21312 23808 26784 27528 28416 30969 31968 35712 36704 41292 42624 53568 55056 61938 63936 71424 73408 82584 85248 107136 110112 123876 127872 146816 165168 214272 220224 247752 255744 293632 330336 440448 495504 660672 880896 991008 1321344 1982016 2642688 3964032 7928064