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30894937 = 593971319
BaseRepresentation
bin111010111011…
…0101101011001
32011010121212221
41311312231121
530402114222
63022104041
7523413463
oct165665531
964117787
1030894937
1116491907
12a41b021
136529438
144163133
152aa40c7
hex1d76b59

30894937 has 8 divisors (see below), whose sum is σ = 31521600. Its totient is φ = 30271824.

The previous prime is 30894923. The next prime is 30894959. The reversal of 30894937 is 73949803.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-30894937 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30894893 and 30894902.

It is not an unprimeable number, because it can be changed into a prime (30894917) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22764 + ... + 24082.

It is an arithmetic number, because the mean of its divisors is an integer number (3940200).

Almost surely, 230894937 is an apocalyptic number.

It is an amenable number.

30894937 is a deficient number, since it is larger than the sum of its proper divisors (626663).

30894937 is a wasteful number, since it uses less digits than its factorization.

30894937 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1775.

The product of its (nonzero) digits is 163296, while the sum is 43.

The square root of 30894937 is about 5558.3214192776. The cubic root of 30894937 is about 313.7827787534.

The spelling of 30894937 in words is "thirty million, eight hundred ninety-four thousand, nine hundred thirty-seven".

Divisors: 1 59 397 1319 23423 77821 523643 30894937