Search a number
-
+
7813104 = 2431319659
BaseRepresentation
bin11101110011011111110000
3112200221120020
4131303133300
54000004404
6435243440
7123260505
oct35633760
915627506
107813104
114457112
122749580
131807350
1410754ac
15a44ed9
hex7737f0

7813104 has 80 divisors (see below), whose sum is σ = 22915200. Its totient is φ = 2274048.

The previous prime is 7813103. The next prime is 7813109. The reversal of 7813104 is 4013187.

It is a super-2 number, since 2×78131042 = 122089188229632, which contains 22 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7813103) 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, 11527 + ... + 12185.

It is an arithmetic number, because the mean of its divisors is an integer number (286440).

Almost surely, 27813104 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 7813104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11457600).

7813104 is an abundant number, since it is smaller than the sum of its proper divisors (15102096).

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

7813104 is a wasteful number, since it uses less digits than its factorization.

7813104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 702 (or 696 counting only the distinct ones).

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

The square root of 7813104 is about 2795.1930165912. The cubic root of 7813104 is about 198.4302449122.

The spelling of 7813104 in words is "seven million, eight hundred thirteen thousand, one hundred four".

Divisors: 1 2 3 4 6 8 12 13 16 19 24 26 38 39 48 52 57 76 78 104 114 152 156 208 228 247 304 312 456 494 624 659 741 912 988 1318 1482 1976 1977 2636 2964 3952 3954 5272 5928 7908 8567 10544 11856 12521 15816 17134 25042 25701 31632 34268 37563 50084 51402 68536 75126 100168 102804 137072 150252 162773 200336 205608 300504 325546 411216 488319 601008 651092 976638 1302184 1953276 2604368 3906552 7813104