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69742530 = 232511135419
BaseRepresentation
bin1000010100000…
…10111111000010
311212020021202200
410022002333002
5120323230110
610530454030
71504541664
oct412027702
9155207680
1069742530
1136405660
121b434316
13115ab590
149396534
1561c96c0
hex4282fc2

69742530 has 96 divisors (see below), whose sum is σ = 213071040. Its totient is φ = 15603840.

The previous prime is 69742523. The next prime is 69742549. The reversal of 69742530 is 3524796.

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 47 ways as a sum of consecutive naturals, for example, 10161 + ... + 15579.

It is an arithmetic number, because the mean of its divisors is an integer number (2219490).

Almost surely, 269742530 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 69742530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (106535520).

69742530 is an abundant number, since it is smaller than the sum of its proper divisors (143328510).

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

69742530 is a wasteful number, since it uses less digits than its factorization.

69742530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5456 (or 5453 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 36.

The square root of 69742530 is about 8351.1993150685. The cubic root of 69742530 is about 411.6226200003.

The spelling of 69742530 in words is "sixty-nine million, seven hundred forty-two thousand, five hundred thirty".

Divisors: 1 2 3 5 6 9 10 11 13 15 18 22 26 30 33 39 45 55 65 66 78 90 99 110 117 130 143 165 195 198 234 286 330 390 429 495 585 715 858 990 1170 1287 1430 2145 2574 4290 5419 6435 10838 12870 16257 27095 32514 48771 54190 59609 70447 81285 97542 119218 140894 162570 178827 211341 243855 298045 352235 357654 422682 487710 536481 596090 634023 704470 774917 894135 1056705 1072962 1268046 1549834 1788270 2113410 2324751 2682405 3170115 3874585 4649502 5364810 6340230 6974253 7749170 11623755 13948506 23247510 34871265 69742530