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30029925 = 352431929
BaseRepresentation
bin111001010001…
…1100001100101
32002111200022110
41302203201211
530141424200
62551351233
7513151542
oct162434145
962450273
1030029925
1115a50a22
12a082519
1362b57b3
143db9bc9
152982b50
hex1ca3865

30029925 has 24 divisors (see below), whose sum is σ = 49818240. Its totient is φ = 15961600.

The previous prime is 30029911. The next prime is 30029941. The reversal of 30029925 is 52992003.

It is not a de Polignac number, because 30029925 - 25 = 30029893 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30029892 and 30029901.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 31861 + ... + 32789.

It is an arithmetic number, because the mean of its divisors is an integer number (2075760).

Almost surely, 230029925 is an apocalyptic number.

It is an amenable number.

30029925 is a deficient number, since it is larger than the sum of its proper divisors (19788315).

30029925 is a wasteful number, since it uses less digits than its factorization.

30029925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1373 (or 1368 counting only the distinct ones).

The product of its (nonzero) digits is 4860, while the sum is 30.

The square root of 30029925 is about 5479.9566604126. The cubic root of 30029925 is about 310.8265317428.

The spelling of 30029925 in words is "thirty million, twenty-nine thousand, nine hundred twenty-five".

Divisors: 1 3 5 15 25 75 431 929 1293 2155 2787 4645 6465 10775 13935 23225 32325 69675 400399 1201197 2001995 6005985 10009975 30029925