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385402248 = 233272119931
BaseRepresentation
bin10110111110001…
…100010110001000
3222212012110111100
4112332030112020
51242130332443
6102124301400
712356602500
oct2676142610
9885173440
10385402248
11188605460
12a90a1860
1361b0008a
1439284a00
1523c7d3d3
hex16f8c588

385402248 has 144 divisors (see below), whose sum is σ = 1324730160. Its totient is φ = 100094400.

The previous prime is 385402247. The next prime is 385402301. The reversal of 385402248 is 842204583.

385402248 is a `hidden beast` number, since 3 + 8 + 5 + 402 + 248 = 666.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (385402247) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 33843 + ... + 43773.

It is an arithmetic number, because the mean of its divisors is an integer number (9199515).

Almost surely, 2385402248 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 385402248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (662365080).

385402248 is an abundant number, since it is smaller than the sum of its proper divisors (939327912).

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

385402248 is a wasteful number, since it uses less digits than its factorization.

385402248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9968 (or 9954 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 36.

The square root of 385402248 is about 19631.6644225598. The cubic root of 385402248 is about 727.7319032539.

The spelling of 385402248 in words is "three hundred eighty-five million, four hundred two thousand, two hundred forty-eight".

Divisors: 1 2 3 4 6 7 8 9 11 12 14 18 21 22 24 28 33 36 42 44 49 56 63 66 72 77 84 88 98 99 126 132 147 154 168 196 198 231 252 264 294 308 392 396 441 462 504 539 588 616 693 792 882 924 1078 1176 1386 1617 1764 1848 2156 2772 3234 3528 4312 4851 5544 6468 9702 9931 12936 19404 19862 29793 38808 39724 59586 69517 79448 89379 109241 119172 139034 178758 208551 218482 238344 278068 327723 357516 417102 436964 486619 556136 625653 655446 715032 764687 834204 873928 973238 983169 1251306 1310892 1459857 1529374 1668408 1946476 1966338 2294061 2502612 2621784 2919714 3058748 3892952 3932676 4379571 4588122 5005224 5352809 5839428 6117496 6882183 7865352 8759142 9176244 10705618 11678856 13764366 16058427 17518284 18352488 21411236 27528732 32116854 35036568 42822472 48175281 55057464 64233708 96350562 128467416 192701124 385402248