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34309530 = 2325478111
BaseRepresentation
bin1000001011100…
…0010110011010
32101120002211100
42002320112122
532240401110
63223212230
7564424533
oct202702632
971502740
1034309530
1118404292
12b5a7076
1371536c8
1447b168a
15302abc0
hex20b859a

34309530 has 48 divisors (see below), whose sum is σ = 91113984. Its totient is φ = 8953440.

The previous prime is 34309501. The next prime is 34309547. The reversal of 34309530 is 3590343.

It is a junction number, because it is equal to n+sod(n) for n = 34309494 and 34309503.

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 23 ways as a sum of consecutive naturals, for example, 175 + ... + 8285.

It is an arithmetic number, because the mean of its divisors is an integer number (1898208).

Almost surely, 234309530 is an apocalyptic number.

34309530 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 34309530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45556992).

34309530 is an abundant number, since it is smaller than the sum of its proper divisors (56804454).

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

34309530 is a wasteful number, since it uses less digits than its factorization.

34309530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8171 (or 8168 counting only the distinct ones).

The product of its (nonzero) digits is 4860, while the sum is 27.

The square root of 34309530 is about 5857.4337384216. The cubic root of 34309530 is about 324.9413069553.

Adding to 34309530 its reverse (3590343), we get a palindrome (37899873).

The spelling of 34309530 in words is "thirty-four million, three hundred nine thousand, five hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 47 90 94 141 235 282 423 470 705 846 1410 2115 4230 8111 16222 24333 40555 48666 72999 81110 121665 145998 243330 364995 381217 729990 762434 1143651 1906085 2287302 3430953 3812170 5718255 6861906 11436510 17154765 34309530