Search a number
-
+
30250074 = 2329173851
BaseRepresentation
bin111001101100…
…1010001011010
32002220212022010
41303121101122
530221000244
63000210350
7515056431
oct163312132
962825263
1030250074
1116091368
12a1699b6
136361a6a
144036118
1529c7eb9
hex1cd945a

30250074 has 16 divisors (see below), whose sum is σ = 62586720. Its totient is φ = 9735600.

The previous prime is 30250069. The next prime is 30250081. The reversal of 30250074 is 47005203.

30250074 = 2022 + 2032 + ... + 4622.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 30250074.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86752 + ... + 87099.

It is an arithmetic number, because the mean of its divisors is an integer number (3911670).

Almost surely, 230250074 is an apocalyptic number.

30250074 is an abundant number, since it is smaller than the sum of its proper divisors (32336646).

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

30250074 is a wasteful number, since it uses less digits than its factorization.

30250074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173885.

The product of its (nonzero) digits is 840, while the sum is 21.

The square root of 30250074 is about 5500.0067272686. The cubic root of 30250074 is about 311.5842382923.

Adding to 30250074 its reverse (47005203), we get a palindrome (77255277).

The spelling of 30250074 in words is "thirty million, two hundred fifty thousand, seventy-four".

Divisors: 1 2 3 6 29 58 87 174 173851 347702 521553 1043106 5041679 10083358 15125037 30250074