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340812030 = 23513873877
BaseRepresentation
bin10100010100000…
…110000011111110
3212202022001012210
4110110012003332
51144221441110
653452441250
711305566036
oct2424060376
9782261183
10340812030
1116541a139
1296179226
13557ba130
14333988c6
151edc1520
hex145060fe

340812030 has 32 divisors (see below), whose sum is σ = 880869024. Its totient is φ = 83892096.

The previous prime is 340812029. The next prime is 340812037. The reversal of 340812030 is 30218043.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 340811988 and 340812006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340812037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 436549 + ... + 437328.

It is an arithmetic number, because the mean of its divisors is an integer number (27527157).

Almost surely, 2340812030 is an apocalyptic number.

340812030 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

340812030 is an abundant number, since it is smaller than the sum of its proper divisors (540056994).

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

340812030 is a wasteful number, since it uses less digits than its factorization.

340812030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 873900.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 340812030 is about 18461.0950379440. The cubic root of 340812030 is about 698.5084089431.

The spelling of 340812030 in words is "three hundred forty million, eight hundred twelve thousand, thirty".

Divisors: 1 2 3 5 6 10 13 15 26 30 39 65 78 130 195 390 873877 1747754 2621631 4369385 5243262 8738770 11360401 13108155 22720802 26216310 34081203 56802005 68162406 113604010 170406015 340812030