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30934870 = 253093487
BaseRepresentation
bin111011000000…
…0011101010110
32011012122122221
41312000131112
530404403440
63023012554
7523641061
oct166003526
964178587
1030934870
111650990a
12a43a15a
136541675
1441738d8
152ab0d4a
hex1d80756

30934870 has 8 divisors (see below), whose sum is σ = 55682784. Its totient is φ = 12373944.

The previous prime is 30934861. The next prime is 30934873. The reversal of 30934870 is 7843903.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30934873) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1546734 + ... + 1546753.

It is an arithmetic number, because the mean of its divisors is an integer number (6960348).

Almost surely, 230934870 is an apocalyptic number.

30934870 is a deficient number, since it is larger than the sum of its proper divisors (24747914).

30934870 is a wasteful number, since it uses less digits than its factorization.

30934870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3093494.

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 30934870 is about 5561.9124408786. The cubic root of 30934870 is about 313.9179130090.

The spelling of 30934870 in words is "thirty million, nine hundred thirty-four thousand, eight hundred seventy".

Divisors: 1 2 5 10 3093487 6186974 15467435 30934870