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30684514 = 274746633
BaseRepresentation
bin111010100001…
…1010101100010
32010201221020111
41311003111202
530323401024
63013401534
7521546140
oct165032542
963657214
1030684514
1116358803
12a3392aa
136484723
14410a590
152a61a94
hex1d43562

30684514 has 16 divisors (see below), whose sum is σ = 53722368. Its totient is φ = 12870432.

The previous prime is 30684431. The next prime is 30684529. The reversal of 30684514 is 41548603.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22659 + ... + 23974.

It is an arithmetic number, because the mean of its divisors is an integer number (3357648).

Almost surely, 230684514 is an apocalyptic number.

30684514 is a deficient number, since it is larger than the sum of its proper divisors (23037854).

30684514 is a wasteful number, since it uses less digits than its factorization.

30684514 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46689.

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 30684514 is about 5539.3604323965. The cubic root of 30684514 is about 313.0687719537.

The spelling of 30684514 in words is "thirty million, six hundred eighty-four thousand, five hundred fourteen".

Divisors: 1 2 7 14 47 94 329 658 46633 93266 326431 652862 2191751 4383502 15342257 30684514