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30708276 = 22313718679
BaseRepresentation
bin111010100100…
…1001000110100
32010210010211120
41311021020310
530330131101
63014103540
7522005334
oct165111064
963703746
1030708276
1116374645
12a34abb0
1364924a1
1441150c4
152a68b36
hex1d49234

30708276 has 24 divisors (see below), whose sum is σ = 72179520. Its totient is φ = 10160832.

The previous prime is 30708241. The next prime is 30708283. The reversal of 30708276 is 67280703.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7696 + ... + 10983.

It is an arithmetic number, because the mean of its divisors is an integer number (3007480).

Almost surely, 230708276 is an apocalyptic number.

It is an amenable number.

30708276 is an abundant number, since it is smaller than the sum of its proper divisors (41471244).

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

30708276 is a wasteful number, since it uses less digits than its factorization.

30708276 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18823 (or 18821 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 33.

The square root of 30708276 is about 5541.5048497678. The cubic root of 30708276 is about 313.1495642898.

Adding to 30708276 its reverse (67280703), we get a palindrome (97988979).

The spelling of 30708276 in words is "thirty million, seven hundred eight thousand, two hundred seventy-six".

Divisors: 1 2 3 4 6 12 137 274 411 548 822 1644 18679 37358 56037 74716 112074 224148 2559023 5118046 7677069 10236092 15354138 30708276