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30976461 = 323441829
BaseRepresentation
bin111011000101…
…0100111001101
32011021202201100
41312022213031
530412221321
63023533313
7524203245
oct166124715
964252640
1030976461
111653808a
12a45a239
136557589
144184b25
152abd326
hex1d8a9cd

30976461 has 6 divisors (see below), whose sum is σ = 44743790. Its totient is φ = 20650968.

The previous prime is 30976457. The next prime is 30976481. The reversal of 30976461 is 16467903.

30976461 is a `hidden beast` number, since 3 + 0 + 9 + 7 + 646 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 17690436 + 13286025 = 4206^2 + 3645^2 .

It is not a de Polignac number, because 30976461 - 22 = 30976457 is a prime.

It is a super-2 number, since 2×309764612 = 1919082272169042, 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 (30976411) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1720906 + ... + 1720923.

Almost surely, 230976461 is an apocalyptic number.

It is an amenable number.

30976461 is a deficient number, since it is larger than the sum of its proper divisors (13767329).

30976461 is a wasteful number, since it uses less digits than its factorization.

30976461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3441835 (or 3441832 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 36.

The square root of 30976461 is about 5565.6500967991. The cubic root of 30976461 is about 314.0585343971.

The spelling of 30976461 in words is "thirty million, nine hundred seventy-six thousand, four hundred sixty-one".

Divisors: 1 3 9 3441829 10325487 30976461