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146317680 = 243251031973
BaseRepresentation
bin10001011100010…
…10000101110000
3101012022201010100
420232022011300
5244424131210
622304032400
73424452105
oct1056120560
9335281110
10146317680
1175657703
1241002700
132440cb12
141560aaac
15cca35c0
hex8b8a170

146317680 has 120 divisors (see below), whose sum is σ = 496405728. Its totient is φ = 38619648.

The previous prime is 146317669. The next prime is 146317681. The reversal of 146317680 is 86713641.

146317680 is a `hidden beast` number, since 14 + 631 + 7 + 6 + 8 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (146317681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 73174 + ... + 75146.

Almost surely, 2146317680 is an apocalyptic number.

146317680 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 146317680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (248202864).

146317680 is an abundant number, since it is smaller than the sum of its proper divisors (350088048).

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

146317680 is a wasteful number, since it uses less digits than its factorization.

146317680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2095 (or 2086 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 146317680 is about 12096.1845224021. The cubic root of 146317680 is about 526.9453811494.

The spelling of 146317680 in words is "one hundred forty-six million, three hundred seventeen thousand, six hundred eighty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 30 36 40 45 48 60 72 80 90 103 120 144 180 206 240 309 360 412 515 618 720 824 927 1030 1236 1545 1648 1854 1973 2060 2472 3090 3708 3946 4120 4635 4944 5919 6180 7416 7892 8240 9270 9865 11838 12360 14832 15784 17757 18540 19730 23676 24720 29595 31568 35514 37080 39460 47352 59190 71028 74160 78920 88785 94704 118380 142056 157840 177570 203219 236760 284112 355140 406438 473520 609657 710280 812876 1016095 1219314 1420560 1625752 1828971 2032190 2438628 3048285 3251504 3657942 4064380 4877256 6096570 7315884 8128760 9144855 9754512 12193140 14631768 16257520 18289710 24386280 29263536 36579420 48772560 73158840 146317680