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30894634 = 273920903
BaseRepresentation
bin111010111011…
…0101000101010
32011010121110201
41311312220222
530402112014
63022102414
7523412551
oct165665052
964117421
1030894634
1116491661
12a41aa0a
136529264
144162d98
152aa3e74
hex1d76a2a

30894634 has 8 divisors (see below), whose sum is σ = 46406880. Its totient is φ = 15425676.

The previous prime is 30894629. The next prime is 30894637. The reversal of 30894634 is 43649803.

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

It is a junction number, because it is equal to n+sod(n) for n = 30894593 and 30894602.

It is not an unprimeable number, because it can be changed into a prime (30894637) 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, 8974 + ... + 11929.

It is an arithmetic number, because the mean of its divisors is an integer number (5800860).

Almost surely, 230894634 is an apocalyptic number.

30894634 is a deficient number, since it is larger than the sum of its proper divisors (15512246).

30894634 is a wasteful number, since it uses less digits than its factorization.

30894634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21644.

The product of its (nonzero) digits is 62208, while the sum is 37.

The square root of 30894634 is about 5558.2941627805. The cubic root of 30894634 is about 313.7817529489.

The spelling of 30894634 in words is "thirty million, eight hundred ninety-four thousand, six hundred thirty-four".

Divisors: 1 2 739 1478 20903 41806 15447317 30894634