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120145532530 = 2513787697469
BaseRepresentation
bin110111111100100111…
…0110101011001110010
3102111010011000102121011
41233321032311121302
53432024224020110
6131105531421134
711452214114332
oct1577116653162
9374104012534
10120145532530
1146a54025941
121b3505b47aa
13b4393b09aa
145b5a7cb0c2
1531d2b5148a
hex1bf93b5672

120145532530 has 16 divisors (see below), whose sum is σ = 217840515480. Its totient is φ = 47707422592.

The previous prime is 120145532519. The next prime is 120145532557. The reversal of 120145532530 is 35235541021.

It can be written as a sum of positive squares in 4 ways, for example, as 85615345201 + 34530187329 = 292601^2 + 185823^2 .

It is a junction number, because it is equal to n+sod(n) for n = 120145532492 and 120145532501.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43847365 + ... + 43850104.

Almost surely, 2120145532530 is an apocalyptic number.

120145532530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

120145532530 is a deficient number, since it is larger than the sum of its proper divisors (97694982950).

120145532530 is a wasteful number, since it uses less digits than its factorization.

120145532530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87697613.

The product of its (nonzero) digits is 18000, while the sum is 31.

The spelling of 120145532530 in words is "one hundred twenty billion, one hundred forty-five million, five hundred thirty-two thousand, five hundred thirty".

Divisors: 1 2 5 10 137 274 685 1370 87697469 175394938 438487345 876974690 12014553253 24029106506 60072766265 120145532530