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345423387430 = 251117881209669
BaseRepresentation
bin1010000011011001101…
…01101001101100100110
31020000121011001012011201
411001230311221230212
521124411341344210
6422404005553114
733645625230322
oct5015465515446
91200534035151
10345423387430
11123547551610
1256b4171579a
132675b67c554
1412a0bb02982
158eba38053a
hex506cd69b26

345423387430 has 64 divisors (see below), whose sum is σ = 719003718720. Its totient is φ = 118085017600.

The previous prime is 345423387401. The next prime is 345423387433. The reversal of 345423387430 is 34783324543.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345423387433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1542636 + ... + 1752304.

It is an arithmetic number, because the mean of its divisors is an integer number (11234433105).

Almost surely, 2345423387430 is an apocalyptic number.

345423387430 is an abundant number, since it is smaller than the sum of its proper divisors (373580331290).

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

345423387430 is a wasteful number, since it uses less digits than its factorization.

345423387430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210585.

The product of its (nonzero) digits is 2903040, while the sum is 46.

The spelling of 345423387430 in words is "three hundred forty-five billion, four hundred twenty-three million, three hundred eighty-seven thousand, four hundred thirty".

Divisors: 1 2 5 10 11 17 22 34 55 85 110 170 187 374 881 935 1762 1870 4405 8810 9691 14977 19382 29954 48455 74885 96910 149770 164747 209669 329494 419338 823735 1048345 1647470 2096690 2306359 3564373 4612718 7128746 11531795 17821865 23063590 35643730 39208103 78416206 184718389 196040515 369436778 392081030 923591945 1847183890 2031902279 3140212613 4063804558 6280425226 10159511395 15701063065 20319022790 31402126130 34542338743 69084677486 172711693715 345423387430