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30976934 = 215488467
BaseRepresentation
bin111011000101…
…0101110100110
32011021210100212
41312022232212
530412230214
63023535422
7524204522
oct166125646
964253325
1030976934
111653847a
12a45a572
136557861
144184d82
152abd53e
hex1d8aba6

30976934 has 4 divisors (see below), whose sum is σ = 46465404. Its totient is φ = 15488466.

The previous prime is 30976931. The next prime is 30976943. The reversal of 30976934 is 43967903.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 43967903 = 76281129.

It is a junction number, because it is equal to n+sod(n) for n = 30976891 and 30976900.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30976931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7744232 + ... + 7744235.

It is an arithmetic number, because the mean of its divisors is an integer number (11616351).

Almost surely, 230976934 is an apocalyptic number.

30976934 is a deficient number, since it is larger than the sum of its proper divisors (15488470).

30976934 is a wasteful number, since it uses less digits than its factorization.

30976934 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15488469.

The product of its (nonzero) digits is 122472, while the sum is 41.

The square root of 30976934 is about 5565.6925894268. The cubic root of 30976934 is about 314.0601329112.

The spelling of 30976934 in words is "thirty million, nine hundred seventy-six thousand, nine hundred thirty-four".

Divisors: 1 2 15488467 30976934