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120145308169 = 297158351291
BaseRepresentation
bin110111111100100110…
…1111110101000001001
3102111010010121000211111
41233321031332220021
53432024144330134
6131105522530321
711452212161245
oct1577115765011
9374103530744
10120145308169
1146a53992317
121b3505069a1
13b439332833
145b5a76d425
1531d2b09c64
hex1bf937ea09

120145308169 has 8 divisors (see below), whose sum is σ = 126038790720. Its totient is φ = 114368528400.

The previous prime is 120145308163. The next prime is 120145308197. The reversal of 120145308169 is 961803541021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 120145308169 - 29 = 120145307657 is a prime.

It is a super-2 number, since 2×1201453081692 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120145308163) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29173587 + ... + 29177704.

It is an arithmetic number, because the mean of its divisors is an integer number (15754848840).

Almost surely, 2120145308169 is an apocalyptic number.

It is an amenable number.

120145308169 is a deficient number, since it is larger than the sum of its proper divisors (5893482551).

120145308169 is an equidigital number, since it uses as much as digits as its factorization.

120145308169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58351391.

The product of its (nonzero) digits is 51840, while the sum is 40.

The spelling of 120145308169 in words is "one hundred twenty billion, one hundred forty-five million, three hundred eight thousand, one hundred sixty-nine".

Divisors: 1 29 71 2059 58351291 1692187439 4142941661 120145308169