Search a number
-
+
75725600 = 2552103919
BaseRepresentation
bin1001000001101…
…11101100100000
312021111020222212
410200313230200
5123341204400
611303021252
71606441226
oct440675440
9167436885
1075725600
1139821845
122143a828
13128c4962
14a0b2b16
1569ac335
hex4837b20

75725600 has 72 divisors (see below), whose sum is σ = 186863040. Its totient is φ = 29963520.

The previous prime is 75725593. The next prime is 75725603. The reversal of 75725600 is 652757.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is not an unprimeable number, because it can be changed into a prime (75725603) 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 11 ways as a sum of consecutive naturals, for example, 81941 + ... + 82859.

It is an arithmetic number, because the mean of its divisors is an integer number (2595320).

Almost surely, 275725600 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 75725600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93431520).

75725600 is an abundant number, since it is smaller than the sum of its proper divisors (111137440).

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

75725600 is a wasteful number, since it uses less digits than its factorization.

75725600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1042 (or 1029 counting only the distinct ones).

The product of its (nonzero) digits is 14700, while the sum is 32.

The square root of 75725600 is about 8702.0457364921. The cubic root of 75725600 is about 423.0719585770.

The spelling of 75725600 in words is "seventy-five million, seven hundred twenty-five thousand, six hundred".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 80 100 103 160 200 206 400 412 515 800 824 919 1030 1648 1838 2060 2575 3296 3676 4120 4595 5150 7352 8240 9190 10300 14704 16480 18380 20600 22975 29408 36760 41200 45950 73520 82400 91900 94657 147040 183800 189314 367600 378628 473285 735200 757256 946570 1514512 1893140 2366425 3029024 3786280 4732850 7572560 9465700 15145120 18931400 37862800 75725600