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164958020590 = 25117931360647
BaseRepresentation
bin1001100110100001000…
…0111010001111101110
3120202210012121200122011
42121220100322033232
510200313223124330
6203440342511434
714626546016506
oct2315020721756
9522705550564
10164958020590
1163a5a558440
1227b7813557a
131272b4baa0c
147dac1a8a06
154456da082a
hex266843a3ee

164958020590 has 64 divisors (see below), whose sum is σ = 329071196160. Its totient is φ = 59035242240.

The previous prime is 164958020587. The next prime is 164958020621. The reversal of 164958020590 is 95020859461.

164958020590 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1649580205902 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2689647 + ... + 2750293.

It is an arithmetic number, because the mean of its divisors is an integer number (5141737440).

Almost surely, 2164958020590 is an apocalyptic number.

164958020590 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

164958020590 is a deficient number, since it is larger than the sum of its proper divisors (164113175570).

164958020590 is a wasteful number, since it uses less digits than its factorization.

164958020590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61057.

The product of its (nonzero) digits is 777600, while the sum is 49.

The spelling of 164958020590 in words is "one hundred sixty-four billion, nine hundred fifty-eight million, twenty thousand, five hundred ninety".

Divisors: 1 2 5 10 11 22 55 79 110 158 313 395 626 790 869 1565 1738 3130 3443 4345 6886 8690 17215 24727 34430 49454 60647 121294 123635 247270 271997 303235 543994 606470 667117 1334234 1359985 2719970 3335585 4791113 6671170 9582226 18982511 23955565 37965022 47911130 52702243 94912555 105404486 189825110 208807621 263511215 417615242 527022430 1044038105 1499618369 2088076210 2999236738 7498091845 14996183690 16495802059 32991604118 82479010295 164958020590