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164309831197824 = 2731332914629647
BaseRepresentation
bin100101010111000001011101…
…000111110010010010000000
3210112202212101122110101000010
4211113001131013302102000
5133014023013241312244
61341242521105024520
746415664535052004
oct4527013507622200
9715685348411003
10164309831197824
1148399454187624
121651841a025140
13708b473355b80
142c808d156c704
1513ee120b53eb9
hex95705d1f2480

164309831197824 has 64 divisors (see below), whose sum is σ = 470020911373440. Its totient is φ = 50556871136256.

The previous prime is 164309831197739. The next prime is 164309831197879. The reversal of 164309831197824 is 428791138903461.

It is a tau number, because it is divible by the number of its divisors (64).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16457309832 + ... + 16457319815.

It is an arithmetic number, because the mean of its divisors is an integer number (7344076740210).

Almost surely, 2164309831197824 is an apocalyptic number.

It is an amenable number.

164309831197824 is an abundant number, since it is smaller than the sum of its proper divisors (305711080175616).

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

164309831197824 is a wasteful number, since it uses less digits than its factorization.

164309831197824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32914629677 (or 32914629665 counting only the distinct ones).

The product of its (nonzero) digits is 62705664, while the sum is 66.

The spelling of 164309831197824 in words is "one hundred sixty-four trillion, three hundred nine billion, eight hundred thirty-one million, one hundred ninety-seven thousand, eight hundred twenty-four".

Divisors: 1 2 3 4 6 8 12 13 16 24 26 32 39 48 52 64 78 96 104 128 156 192 208 312 384 416 624 832 1248 1664 2496 4992 32914629647 65829259294 98743888941 131658518588 197487777882 263317037176 394975555764 427890185411 526634074352 789951111528 855780370822 1053268148704 1283670556233 1579902223056 1711560741644 2106536297408 2567341112466 3159804446112 3423121483288 4213072594816 5134682224932 6319608892224 6846242966576 10269364449864 12639217784448 13692485933152 20538728899728 27384971866304 41077457799456 54769943732608 82154915598912 164309831197824