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122152080 = 24352322129
BaseRepresentation
bin1110100011111…
…10010010010000
322111211222011010
413101332102100
5222232331310
620042050520
73012163341
oct721762220
9274758133
10122152080
1162a51736
1234aa9a40
131c3cb64b
141231a0c8
15aacd320
hex747e490

122152080 has 80 divisors (see below), whose sum is σ = 395153280. Its totient is φ = 31156224.

The previous prime is 122152061. The next prime is 122152081. The reversal of 122152080 is 80251221.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×1221520802 = 29842261296652800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (122152081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5545 + ... + 16584.

It is an arithmetic number, because the mean of its divisors is an integer number (4939416).

Almost surely, 2122152080 is an apocalyptic number.

122152080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122152080 is an abundant number, since it is smaller than the sum of its proper divisors (273001200).

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

122152080 is a wasteful number, since it uses less digits than its factorization.

122152080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22168 (or 22162 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 21.

The square root of 122152080 is about 11052.2432112219. The cubic root of 122152080 is about 496.1735648212.

It can be divided in two parts, 1221 and 52080, that added together give a triangular number (53301 = T326).

The spelling of 122152080 in words is "one hundred twenty-two million, one hundred fifty-two thousand, eighty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 23 24 30 40 46 48 60 69 80 92 115 120 138 184 230 240 276 345 368 460 552 690 920 1104 1380 1840 2760 5520 22129 44258 66387 88516 110645 132774 177032 221290 265548 331935 354064 442580 508967 531096 663870 885160 1017934 1062192 1327740 1526901 1770320 2035868 2544835 2655480 3053802 4071736 5089670 5310960 6107604 7634505 8143472 10179340 12215208 15269010 20358680 24430416 30538020 40717360 61076040 122152080