Search a number
-
+
75000401 = 723465841
BaseRepresentation
bin1000111100001…
…10101001010001
312020010102012122
410132012221101
5123200003101
611235304025
71600331030
oct436065121
9166112178
1075000401
1139376a03
122114b015
13126cc848
149d64717
1568b751b
hex4786a51

75000401 has 8 divisors (see below), whose sum is σ = 89441664. Its totient is φ = 61490880.

The previous prime is 75000349. The next prime is 75000421. The reversal of 75000401 is 10400057.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 75000401 - 26 = 75000337 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 75000401.

It is not an unprimeable number, because it can be changed into a prime (75000421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 232760 + ... + 233081.

It is an arithmetic number, because the mean of its divisors is an integer number (11180208).

Almost surely, 275000401 is an apocalyptic number.

It is an amenable number.

75000401 is a deficient number, since it is larger than the sum of its proper divisors (14441263).

75000401 is a wasteful number, since it uses less digits than its factorization.

75000401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 465871.

The product of its (nonzero) digits is 140, while the sum is 17.

The square root of 75000401 is about 8660.2771895592. The cubic root of 75000401 is about 421.7170842418.

Adding to 75000401 its reverse (10400057), we get a palindrome (85400458).

The spelling of 75000401 in words is "seventy-five million, four hundred one", and thus it is an aban number.

Divisors: 1 7 23 161 465841 3260887 10714343 75000401