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30976669 = 1719293307
BaseRepresentation
bin111011000101…
…0101010011101
32011021210000001
41312022222131
530412223134
63023534301
7524203663
oct166125235
964253001
1030976669
1116538259
12a45a391
1365576b9
144184c33
152abd414
hex1d8aa9d

30976669 has 16 divisors (see below), whose sum is σ = 35726400. Its totient is φ = 26659584.

The previous prime is 30976667. The next prime is 30976691. The reversal of 30976669 is 96667903.

It is not a de Polignac number, because 30976669 - 21 = 30976667 is a prime.

It is a super-2 number, since 2×309766692 = 1919108044671122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30976667) 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, 7714 + ... + 11020.

It is an arithmetic number, because the mean of its divisors is an integer number (2232900).

Almost surely, 230976669 is an apocalyptic number.

It is an amenable number.

30976669 is a deficient number, since it is larger than the sum of its proper divisors (4749731).

30976669 is a wasteful number, since it uses less digits than its factorization.

30976669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3372.

The product of its (nonzero) digits is 367416, while the sum is 46.

The square root of 30976669 is about 5565.6687828149. The cubic root of 30976669 is about 314.0592373398.

The spelling of 30976669 in words is "thirty million, nine hundred seventy-six thousand, six hundred sixty-nine".

Divisors: 1 17 19 29 323 493 551 3307 9367 56219 62833 95903 1068161 1630351 1822157 30976669