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30442004 = 227610501
BaseRepresentation
bin111010000100…
…0001000010100
32010021121120122
41310020020110
530243121004
63004251112
7516516125
oct164101024
963247518
1030442004
111620258a
12a240a98
1363cb228
14408604c
152a14cbe
hex1d08214

30442004 has 6 divisors (see below), whose sum is σ = 53273514. Its totient is φ = 15221000.

The previous prime is 30442001. The next prime is 30442037. The reversal of 30442004 is 40024403.

It can be written as a sum of positive squares in only one way, i.e., 23990404 + 6451600 = 4898^2 + 2540^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30442001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3805247 + ... + 3805254.

It is an arithmetic number, because the mean of its divisors is an integer number (8878919).

Almost surely, 230442004 is an apocalyptic number.

It is an amenable number.

30442004 is a deficient number, since it is larger than the sum of its proper divisors (22831510).

30442004 is a wasteful number, since it uses less digits than its factorization.

30442004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7610505 (or 7610503 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 17.

The square root of 30442004 is about 5517.4272990226. The cubic root of 30442004 is about 312.2418270883.

Adding to 30442004 its reverse (40024403), we get a palindrome (70466407).

The spelling of 30442004 in words is "thirty million, four hundred forty-two thousand, four".

Divisors: 1 2 4 7610501 15221002 30442004