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146729960 = 23513972909
BaseRepresentation
bin10001011111011…
…10101111101000
3101020002122122222
420233232233220
5300030324320
622320533212
73431120066
oct1057565750
9336078588
10146729960
1175909433
1241181208
1324525680
14156b7036
15cd35825
hex8beebe8

146729960 has 64 divisors (see below), whose sum is σ = 359326800. Its totient is φ = 53600256.

The previous prime is 146729959. The next prime is 146729971. The reversal of 146729960 is 69927641.

It can be written as a sum of positive squares in 8 ways, for example, as 60871204 + 85858756 = 7802^2 + 9266^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48986 + ... + 51894.

Almost surely, 2146729960 is an apocalyptic number.

146729960 is a gapful number since it is divisible by the number (10) 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 146729960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (179663400).

146729960 is an abundant number, since it is smaller than the sum of its proper divisors (212596840).

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

146729960 is a wasteful number, since it uses less digits than its factorization.

146729960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3030 (or 3026 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 44.

The square root of 146729960 is about 12113.2142720254. The cubic root of 146729960 is about 527.4398424992.

The spelling of 146729960 in words is "one hundred forty-six million, seven hundred twenty-nine thousand, nine hundred sixty".

Divisors: 1 2 4 5 8 10 13 20 26 40 52 65 97 104 130 194 260 388 485 520 776 970 1261 1940 2522 2909 3880 5044 5818 6305 10088 11636 12610 14545 23272 25220 29090 37817 50440 58180 75634 116360 151268 189085 282173 302536 378170 564346 756340 1128692 1410865 1512680 2257384 2821730 3668249 5643460 7336498 11286920 14672996 18341245 29345992 36682490 73364980 146729960