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30135948 = 2234358403
BaseRepresentation
bin111001011110…
…1011010001100
32002201001202020
41302331122030
530203322243
62553530140
7514102623
oct162753214
962631666
1030135948
1116013647
12a113950
136321b2b
1440066ba
1529a4283
hex1cbd68c

30135948 has 24 divisors (see below), whose sum is σ = 71953728. Its totient is φ = 9811536.

The previous prime is 30135913. The next prime is 30135967. The reversal of 30135948 is 84953103.

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, 28686 + ... + 29717.

It is an arithmetic number, because the mean of its divisors is an integer number (2998072).

Almost surely, 230135948 is an apocalyptic number.

It is an amenable number.

30135948 is an abundant number, since it is smaller than the sum of its proper divisors (41817780).

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

30135948 is a wasteful number, since it uses less digits than its factorization.

30135948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58453 (or 58451 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 30135948 is about 5489.6218448997. The cubic root of 30135948 is about 311.1919012217.

The spelling of 30135948 in words is "thirty million, one hundred thirty-five thousand, nine hundred forty-eight".

Divisors: 1 2 3 4 6 12 43 86 129 172 258 516 58403 116806 175209 233612 350418 700836 2511329 5022658 7533987 10045316 15067974 30135948