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396668960 = 25529531613
BaseRepresentation
bin10111101001001…
…011000000100000
31000122101212111222
4113221023000200
51303021401320
6103205554212
712554426162
oct2751130040
91018355458
10396668960
11193a00296
12b0a15968
136424637c
143a978932
1524c56825
hex17a4b020

396668960 has 96 divisors (see below), whose sum is σ = 988349040. Its totient is φ = 150212608.

The previous prime is 396668957. The next prime is 396668981. The reversal of 396668960 is 69866693.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 244985104 + 151683856 = 15652^2 + 12316^2 .

It is a Harshad number since it is a multiple of its sum of digits (53).

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 15 ways as a sum of consecutive naturals, for example, 245114 + ... + 246726.

Almost surely, 2396668960 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 396668960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (494174520).

396668960 is an abundant number, since it is smaller than the sum of its proper divisors (591680080).

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

396668960 is a wasteful number, since it uses less digits than its factorization.

396668960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1710 (or 1702 counting only the distinct ones).

The product of its (nonzero) digits is 2519424, while the sum is 53.

The square root of 396668960 is about 19916.5499020287. The cubic root of 396668960 is about 734.7553198543.

The spelling of 396668960 in words is "three hundred ninety-six million, six hundred sixty-eight thousand, nine hundred sixty".

Divisors: 1 2 4 5 8 10 16 20 29 32 40 53 58 80 106 116 145 160 212 232 265 290 424 464 530 580 848 928 1060 1160 1537 1613 1696 2120 2320 3074 3226 4240 4640 6148 6452 7685 8065 8480 12296 12904 15370 16130 24592 25808 30740 32260 46777 49184 51616 61480 64520 85489 93554 122960 129040 170978 187108 233885 245920 258080 341956 374216 427445 467770 683912 748432 854890 935540 1367824 1496864 1709780 1871080 2479181 2735648 3419560 3742160 4958362 6839120 7484320 9916724 12395905 13678240 19833448 24791810 39666896 49583620 79333792 99167240 198334480 396668960