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30930734 = 240138567
BaseRepresentation
bin111010111111…
…1011100101110
32011012102222202
41311333130232
530404240414
63022541502
7523623032
oct165773456
964172882
1030930734
111650679a
12a437892
13653c813
1441721c2
152aae9de
hex1d7f72e

30930734 has 8 divisors (see below), whose sum is σ = 46513008. Its totient is φ = 15426400.

The previous prime is 30930709. The next prime is 30930737. The reversal of 30930734 is 43703903.

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 30930697 and 30930706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30930737) 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, 18482 + ... + 20085.

It is an arithmetic number, because the mean of its divisors is an integer number (5814126).

Almost surely, 230930734 is an apocalyptic number.

30930734 is a deficient number, since it is larger than the sum of its proper divisors (15582274).

30930734 is a wasteful number, since it uses less digits than its factorization.

30930734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38970.

The product of its (nonzero) digits is 6804, while the sum is 29.

The square root of 30930734 is about 5561.5406138947. The cubic root of 30930734 is about 313.9039220838.

The spelling of 30930734 in words is "thirty million, nine hundred thirty thousand, seven hundred thirty-four".

Divisors: 1 2 401 802 38567 77134 15465367 30930734