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30425148 = 22321365011
BaseRepresentation
bin111010000010…
…0000000111100
32010020202110100
41310010000330
530242101043
63004041100
7516416025
oct164040074
963222410
1030425148
11161a0956
12a233190
1363c3660
14407dc4c
152a0ecd3
hex1d0403c

30425148 has 36 divisors (see below), whose sum is σ = 82825288. Its totient is φ = 9361440.

The previous prime is 30425111. The next prime is 30425149. The reversal of 30425148 is 84152403.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30425149) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32038 + ... + 32973.

Almost surely, 230425148 is an apocalyptic number.

It is an amenable number.

30425148 is an abundant number, since it is smaller than the sum of its proper divisors (52400140).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30425148 is a wasteful number, since it uses less digits than its factorization.

30425148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65034 (or 65029 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 30425148 is about 5515.8995639877. The cubic root of 30425148 is about 312.1841861179.

It can be divided in two parts, 304 and 25148, that added together give a palindrome (25452).

The spelling of 30425148 in words is "thirty million, four hundred twenty-five thousand, one hundred forty-eight".

Divisors: 1 2 3 4 6 9 12 13 18 26 36 39 52 78 117 156 234 468 65011 130022 195033 260044 390066 585099 780132 845143 1170198 1690286 2340396 2535429 3380572 5070858 7606287 10141716 15212574 30425148