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69230040 = 233511179293
BaseRepresentation
bin1000010000001…
…01110111011000
311211021020202120
410020011313120
5120210330130
610511501240
71500305565
oct410056730
9154236676
1069230040
1136095610
121b227820
131145c229
1492a186c
156127910
hex4205dd8

69230040 has 128 divisors (see below), whose sum is σ = 228614400. Its totient is φ = 16632320.

The previous prime is 69230039. The next prime is 69230081. The reversal of 69230040 is 4003296.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 236134 + ... + 236426.

It is an arithmetic number, because the mean of its divisors is an integer number (1786050).

Almost surely, 269230040 is an apocalyptic number.

69230040 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 69230040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (114307200).

69230040 is an abundant number, since it is smaller than the sum of its proper divisors (159384360).

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

69230040 is a wasteful number, since it uses less digits than its factorization.

69230040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 497 (or 493 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 69230040 is about 8320.4591219475. The cubic root of 69230040 is about 410.6118961691.

The spelling of 69230040 in words is "sixty-nine million, two hundred thirty thousand, forty".

Divisors: 1 2 3 4 5 6 8 10 11 12 15 20 22 24 30 33 40 44 55 60 66 88 110 120 132 165 179 220 264 293 330 358 440 537 586 660 716 879 895 1074 1172 1320 1432 1465 1758 1790 1969 2148 2344 2685 2930 3223 3516 3580 3938 4296 4395 5370 5860 5907 6446 7032 7160 7876 8790 9669 9845 10740 11720 11814 12892 15752 16115 17580 19338 19690 21480 23628 25784 29535 32230 35160 38676 39380 47256 48345 52447 59070 64460 77352 78760 96690 104894 118140 128920 157341 193380 209788 236280 262235 314682 386760 419576 524470 576917 629364 786705 1048940 1153834 1258728 1573410 1730751 2097880 2307668 2884585 3146820 3461502 4615336 5769170 6293640 6923004 8653755 11538340 13846008 17307510 23076680 34615020 69230040