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30520414 = 289277619
BaseRepresentation
bin111010001101…
…1010001011110
32010102121010201
41310123101132
530303123124
63010054114
7520263541
oct164332136
963377121
1030520414
1116256491
12a27a33a
136427b22
1440a6858
152a2d144
hex1d1b45e

30520414 has 16 divisors (see below), whose sum is σ = 46537200. Its totient is φ = 15009984.

The previous prime is 30520393. The next prime is 30520429. The reversal of 30520414 is 41402503.

It is a junction number, because it is equal to n+sod(n) for n = 30520391 and 30520400.

It is a congruent 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, 48997 + ... + 49615.

It is an arithmetic number, because the mean of its divisors is an integer number (2908575).

Almost surely, 230520414 is an apocalyptic number.

30520414 is a deficient number, since it is larger than the sum of its proper divisors (16016786).

30520414 is a wasteful number, since it uses less digits than its factorization.

30520414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 987.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 30520414 is about 5524.5283961620. The cubic root of 30520414 is about 312.5096794868.

Adding to 30520414 its reverse (41402503), we get a palindrome (71922917).

The spelling of 30520414 in words is "thirty million, five hundred twenty thousand, four hundred fourteen".

Divisors: 1 2 89 178 277 554 619 1238 24653 49306 55091 110182 171463 342926 15260207 30520414