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120030123132 = 2235123487781
BaseRepresentation
bin110111111001001011…
…0100101010001111100
3102110211002212000200000
41233302112211101330
53431310202420012
6131050250034300
711446313132643
oct1576226452174
9373732760600
10120030123132
11469a496a077
121b319a18990
13b41b5033ca
145b4934835a
1531c7955ddc
hex1bf25a547c

120030123132 has 36 divisors (see below), whose sum is σ = 314646868536. Its totient is φ = 40010040720.

The previous prime is 120030123131. The next prime is 120030123179. The reversal of 120030123132 is 231321030021.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120030123131) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 61742919 + ... + 61744862.

Almost surely, 2120030123132 is an apocalyptic number.

120030123132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

120030123132 is an abundant number, since it is smaller than the sum of its proper divisors (194616745404).

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

120030123132 is a wasteful number, since it uses less digits than its factorization.

120030123132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123487800 (or 123487786 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 120030123132 its reverse (231321030021), we get a palindrome (351351153153).

The spelling of 120030123132 in words is "one hundred twenty billion, thirty million, one hundred twenty-three thousand, one hundred thirty-two".

Divisors: 1 2 3 4 6 9 12 18 27 36 54 81 108 162 243 324 486 972 123487781 246975562 370463343 493951124 740926686 1111390029 1481853372 2222780058 3334170087 4445560116 6668340174 10002510261 13336680348 20005020522 30007530783 40010041044 60015061566 120030123132