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69341440 = 285771109
BaseRepresentation
bin1000010001000…
…01000100000000
311211110220120111
410020201010000
5120222411230
610514121104
71501251430
oct410410400
9154426514
1069341440
1136161283
121b280194
131149ab4c
1492d02c0
15614a92a
hex4221100

69341440 has 144 divisors (see below), whose sum is σ = 194261760. Its totient is φ = 23224320.

The previous prime is 69341411. The next prime is 69341473. The reversal of 69341440 is 4414396.

It is a nialpdrome in base 16.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 636106 + ... + 636214.

It is an arithmetic number, because the mean of its divisors is an integer number (1349040).

Almost surely, 269341440 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 69341440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97130880).

69341440 is an abundant number, since it is smaller than the sum of its proper divisors (124920320).

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

69341440 is a wasteful number, since it uses less digits than its factorization.

69341440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208 (or 194 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 69341440 is about 8327.1507732237. The cubic root of 69341440 is about 410.8320205166.

The spelling of 69341440 in words is "sixty-nine million, three hundred forty-one thousand, four hundred forty".

Divisors: 1 2 4 5 7 8 10 14 16 20 28 32 35 40 56 64 70 71 80 109 112 128 140 142 160 218 224 256 280 284 320 355 436 448 497 545 560 568 640 710 763 872 896 994 1090 1120 1136 1280 1420 1526 1744 1792 1988 2180 2240 2272 2485 2840 3052 3488 3815 3976 4360 4480 4544 4970 5680 6104 6976 7630 7739 7952 8720 8960 9088 9940 11360 12208 13952 15260 15478 15904 17440 18176 19880 22720 24416 27904 30520 30956 31808 34880 38695 39760 45440 48832 54173 61040 61912 63616 69760 77390 79520 90880 97664 108346 122080 123824 127232 139520 154780 159040 195328 216692 244160 247648 270865 309560 318080 433384 488320 495296 541730 619120 636160 866768 976640 990592 1083460 1238240 1733536 1981184 2166920 2476480 3467072 4333840 4952960 6934144 8667680 9905920 13868288 17335360 34670720 69341440