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70730404 = 22171040153
BaseRepresentation
bin1000011011101…
…00001010100100
311221002110212121
410031310022210
5121101333104
611003555324
71516125043
oct415641244
9157073777
1070730404
1136a1a888
121b82bb44
1311866114
14957255a
156322254
hex43742a4

70730404 has 12 divisors (see below), whose sum is σ = 131059404. Its totient is φ = 33284864.

The previous prime is 70730393. The next prime is 70730411. The reversal of 70730404 is 40403707.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 54730404 + 16000000 = 7398^2 + 4000^2 .

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 520009 + ... + 520144.

It is an arithmetic number, because the mean of its divisors is an integer number (10921617).

Almost surely, 270730404 is an apocalyptic number.

It is an amenable number.

70730404 is a deficient number, since it is larger than the sum of its proper divisors (60329000).

70730404 is a wasteful number, since it uses less digits than its factorization.

70730404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1040174 (or 1040172 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 25.

The square root of 70730404 is about 8410.1369786704. The cubic root of 70730404 is about 413.5570031762.

The spelling of 70730404 in words is "seventy million, seven hundred thirty thousand, four hundred four".

Divisors: 1 2 4 17 34 68 1040153 2080306 4160612 17682601 35365202 70730404