Search a number
-
+
75423055 = 5291493491
BaseRepresentation
bin1000111111011…
…01110101001111
312020220212222111
410133231311033
5123302014210
611252324451
71604041201
oct437556517
9166825874
1075423055
1139635504
1221313727
131281a036
14a034771
15694c88a
hex47edd4f

75423055 has 16 divisors (see below), whose sum is σ = 94284000. Its totient is φ = 57850240.

The previous prime is 75423053. The next prime is 75423059. The reversal of 75423055 is 55032457.

It is not a de Polignac number, because 75423055 - 21 = 75423053 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75423053) 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, 19860 + ... + 23350.

It is an arithmetic number, because the mean of its divisors is an integer number (5892750).

Almost surely, 275423055 is an apocalyptic number.

75423055 is a deficient number, since it is larger than the sum of its proper divisors (18860945).

75423055 is a wasteful number, since it uses less digits than its factorization.

75423055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3674.

The product of its (nonzero) digits is 21000, while the sum is 31.

The square root of 75423055 is about 8684.6447826034. The cubic root of 75423055 is about 422.5077761952.

The spelling of 75423055 in words is "seventy-five million, four hundred twenty-three thousand, fifty-five".

Divisors: 1 5 29 145 149 745 3491 4321 17455 21605 101239 506195 520159 2600795 15084611 75423055