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30207628 = 22111674111
BaseRepresentation
bin111001100111…
…0111010001100
32002211201002001
41303032322030
530213121003
62555242044
7514521613
oct163167214
962751061
1030207628
1116062490
12a149324
136348649
14402487a
1529ba61d
hex1ccee8c

30207628 has 24 divisors (see below), whose sum is σ = 58028544. Its totient is φ = 13645200.

The previous prime is 30207581. The next prime is 30207637. The reversal of 30207628 is 82670203.

It is a junction number, because it is equal to n+sod(n) for n = 30207596 and 30207605.

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, 5293 + ... + 9403.

It is an arithmetic number, because the mean of its divisors is an integer number (2417856).

Almost surely, 230207628 is an apocalyptic number.

It is an amenable number.

30207628 is a deficient number, since it is larger than the sum of its proper divisors (27820916).

30207628 is a wasteful number, since it uses less digits than its factorization.

30207628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4293 (or 4291 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 30207628 is about 5496.1466501541. The cubic root of 30207628 is about 311.4384348442.

It can be divided in two parts, 3020 and 7628, that added together give a cube (10648 = 223).

The spelling of 30207628 in words is "thirty million, two hundred seven thousand, six hundred twenty-eight".

Divisors: 1 2 4 11 22 44 167 334 668 1837 3674 4111 7348 8222 16444 45221 90442 180884 686537 1373074 2746148 7551907 15103814 30207628