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120807467138 = 260403733569
BaseRepresentation
bin111000010000010101…
…1111010100010000010
3102112211021120012011202
41300200223322202002
53434403202422023
6131255335141202
711504502346001
oct1604053724202
9375737505152
10120807467138
1147263736136
121b4b6214802
13b513582c87
145bc0696c38
153220d05128
hex1c20afa882

120807467138 has 4 divisors (see below), whose sum is σ = 181211200710. Its totient is φ = 60403733568.

The previous prime is 120807467111. The next prime is 120807467161. The reversal of 120807467138 is 831764708021.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 831764708021 = 1363981900617.

It can be written as a sum of positive squares in only one way, i.e., 113021698969 + 7785768169 = 336187^2 + 88237^2 .

It is a super-2 number, since 2×1208074671382 (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 120807467092 and 120807467101.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30201866783 + ... + 30201866786.

Almost surely, 2120807467138 is an apocalyptic number.

120807467138 is a deficient number, since it is larger than the sum of its proper divisors (60403733572).

120807467138 is an equidigital number, since it uses as much as digits as its factorization.

120807467138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60403733571.

The product of its (nonzero) digits is 451584, while the sum is 47.

The spelling of 120807467138 in words is "one hundred twenty billion, eight hundred seven million, four hundred sixty-seven thousand, one hundred thirty-eight".

Divisors: 1 2 60403733569 120807467138