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164490430000 = 2454131265311
BaseRepresentation
bin1001100100110001100…
…1001100011000110000
3120201120121202121221011
42121030121030120300
510143334022230000
6203322120440304
714612140404601
oct2311431143060
9521517677834
10164490430000
116383a617736
1227a67619094
13126856724b0
147d6604bda8
15442acda2ba
hex264c64c630

164490430000 has 100 divisors (see below), whose sum is σ = 428882563648. Its totient is φ = 60734880000.

The previous prime is 164490429979. The next prime is 164490430103. The reversal of 164490430000 is 34094461.

It is a tau number, because it is divible by the number of its divisors (100).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 502656 + ... + 762655.

Almost surely, 2164490430000 is an apocalyptic number.

164490430000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

164490430000 is an abundant number, since it is smaller than the sum of its proper divisors (264392133648).

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

164490430000 is a wasteful number, since it uses less digits than its factorization.

164490430000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1265352 (or 1265331 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 31.

The spelling of 164490430000 in words is "one hundred sixty-four billion, four hundred ninety million, four hundred thirty thousand".

Divisors: 1 2 4 5 8 10 13 16 20 25 26 40 50 52 65 80 100 104 125 130 200 208 250 260 325 400 500 520 625 650 1000 1040 1250 1300 1625 2000 2500 2600 3250 5000 5200 6500 8125 10000 13000 16250 26000 32500 65000 130000 1265311 2530622 5061244 6326555 10122488 12653110 16449043 20244976 25306220 31632775 32898086 50612440 63265550 65796172 82245215 101224880 126531100 131592344 158163875 164490430 253062200 263184688 316327750 328980860 411226075 506124400 632655500 657961720 790819375 822452150 1265311000 1315923440 1581638750 1644904300 2056130375 2530622000 3163277500 3289808600 4112260750 6326555000 6579617200 8224521500 10280651875 12653110000 16449043000 20561303750 32898086000 41122607500 82245215000 164490430000