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69345243 = 32111315347
BaseRepresentation
bin1000010001000…
…01111111011011
311211111002210100
410020201333123
5120223021433
610514150443
71501265502
oct410417733
9154432710
1069345243
1136164120
121b282423
131149c7b6
1492d1839
15614bb13
hex4221fdb

69345243 has 24 divisors (see below), whose sum is σ = 110126016. Its totient is φ = 41698800.

The previous prime is 69345229. The next prime is 69345259. The reversal of 69345243 is 34254396.

It is not a de Polignac number, because 69345243 - 28 = 69344987 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 69345198 and 69345207.

It is not an unprimeable number, because it can be changed into a prime (69345443) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10296 + ... + 15642.

It is an arithmetic number, because the mean of its divisors is an integer number (4588584).

Almost surely, 269345243 is an apocalyptic number.

69345243 is a deficient number, since it is larger than the sum of its proper divisors (40780773).

69345243 is a wasteful number, since it uses less digits than its factorization.

69345243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5495 (or 5492 counting only the distinct ones).

The product of its digits is 77760, while the sum is 36.

The square root of 69345243 is about 8327.3791195069. The cubic root of 69345243 is about 410.8395310116.

It can be divided in two parts, 6 and 9345243, that added together give a square (9345249 = 30572).

The spelling of 69345243 in words is "sixty-nine million, three hundred forty-five thousand, two hundred forty-three".

Divisors: 1 3 9 11 33 99 131 393 1179 1441 4323 5347 12969 16041 48123 58817 176451 529353 700457 2101371 6304113 7705027 23115081 69345243