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30351234 = 2341123379
BaseRepresentation
bin111001111000…
…1111110000010
32010010000001210
41303301332002
530232214414
63002310550
7515660364
oct163617602
963100053
1030351234
1116150371
12a1b8456
136398b14
144060d34
1529e7e59
hex1cf1f82

30351234 has 16 divisors (see below), whose sum is σ = 62183520. Its totient is φ = 9870240.

The previous prime is 30351179. The next prime is 30351257. The reversal of 30351234 is 43215303.

It is a self number, because there is not a number n which added to its sum of digits gives 30351234.

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, 61444 + ... + 61935.

It is an arithmetic number, because the mean of its divisors is an integer number (3886470).

Almost surely, 230351234 is an apocalyptic number.

30351234 is an abundant number, since it is smaller than the sum of its proper divisors (31832286).

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

30351234 is a wasteful number, since it uses less digits than its factorization.

30351234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123425.

The product of its (nonzero) digits is 1080, while the sum is 21.

The square root of 30351234 is about 5509.1954040495. The cubic root of 30351234 is about 311.9311772919.

Adding to 30351234 its reverse (43215303), we get a palindrome (73566537).

The spelling of 30351234 in words is "thirty million, three hundred fifty-one thousand, two hundred thirty-four".

Divisors: 1 2 3 6 41 82 123 246 123379 246758 370137 740274 5058539 10117078 15175617 30351234