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164353888384 = 277417615879
BaseRepresentation
bin1001100100010001000…
…0010101000010000000
3120201020002211121001021
42121010100111002000
510143044043412014
6203300402115224
714605562000230
oct2310420250200
9521202747037
10164353888384
116377a537a24
1227a2994bb14
13126632a633a
147d51c67cc0
15441dd18624
hex2644415080

164353888384 has 128 divisors (see below), whose sum is σ = 383894380800. Its totient is φ = 68617420800.

The previous prime is 164353888319. The next prime is 164353888441. The reversal of 164353888384 is 483888353461.

It is a tau number, because it is divible by the number of its divisors (128).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27953157 + ... + 27959035.

It is an arithmetic number, because the mean of its divisors is an integer number (2999174850).

Almost surely, 2164353888384 is an apocalyptic number.

164353888384 is a gapful number since it is divisible by the number (14) 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 164353888384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (191947190400).

164353888384 is an abundant number, since it is smaller than the sum of its proper divisors (219540492416).

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

164353888384 is an equidigital number, since it uses as much as digits as its factorization.

164353888384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6702 (or 6690 counting only the distinct ones).

The product of its digits is 53084160, while the sum is 61.

The spelling of 164353888384 in words is "one hundred sixty-four billion, three hundred fifty-three million, eight hundred eighty-eight thousand, three hundred eighty-four".

Divisors: 1 2 4 7 8 14 16 28 32 41 56 64 82 112 128 164 224 287 328 448 574 656 761 896 1148 1312 1522 2296 2624 3044 4592 5248 5327 5879 6088 9184 10654 11758 12176 18368 21308 23516 24352 31201 36736 41153 42616 47032 48704 62402 82306 85232 94064 97408 124804 164612 170464 188128 218407 241039 249608 329224 340928 376256 436814 482078 499216 658448 681856 752512 873628 964156 998432 1316896 1687273 1747256 1928312 1996864 2633792 3374546 3494512 3856624 3993728 4473919 5267584 6749092 6989024 7713248 8947838 13498184 13978048 15426496 17895676 26996368 27956096 30852992 31317433 35791352 53992736 62634866 71582704 107985472 125269732 143165408 183430679 215970944 250539464 286330816 366861358 501078928 572661632 733722716 1002157856 1284014753 1467445432 2004315712 2568029506 2934890864 4008631424 5136059012 5869781728 10272118024 11739563456 20544236048 23479126912 41088472096 82176944192 164353888384