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30679404 = 2237365231
BaseRepresentation
bin111010100001…
…0000101101100
32010201200020020
41311002011230
530323220104
63013322140
7521525220
oct165020554
963650206
1030679404
1116354988
12a336350
1364822c2
144108780
152a602d9
hex1d4216c

30679404 has 24 divisors (see below), whose sum is σ = 81811968. Its totient is φ = 8765520.

The previous prime is 30679381. The next prime is 30679409. The reversal of 30679404 is 40497603.

It is not an unprimeable number, because it can be changed into a prime (30679409) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 182532 + ... + 182699.

It is an arithmetic number, because the mean of its divisors is an integer number (3408832).

Almost surely, 230679404 is an apocalyptic number.

It is an amenable number.

30679404 is an abundant number, since it is smaller than the sum of its proper divisors (51132564).

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

30679404 is a wasteful number, since it uses less digits than its factorization.

30679404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 365245 (or 365243 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 33.

The square root of 30679404 is about 5538.8991686074. The cubic root of 30679404 is about 313.0513921745.

The spelling of 30679404 in words is "thirty million, six hundred seventy-nine thousand, four hundred four".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 84 365231 730462 1095693 1460924 2191386 2556617 4382772 5113234 7669851 10226468 15339702 30679404