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151539390169 = 369141056459
BaseRepresentation
bin1000110100100001110…
…0111001011011011001
3112111011001002122012021
42031020130321123121
54440323040441134
6153341035014441
713643200364146
oct2151034713331
9474131078167
10151539390169
11592a4042832
122545229a421
13113a048380b
147497dc93cd
153e1dd0a0b4
hex23487396d9

151539390169 has 4 divisors (see below), whose sum is σ = 151580450320. Its totient is φ = 151498330020.

The previous prime is 151539390157. The next prime is 151539390179. The reversal of 151539390169 is 961093935151.

151539390169 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 961093935151 = 7137299133593.

It is a cyclic number.

It is not a de Polignac number, because 151539390169 - 213 = 151539381977 is a prime.

It is a super-2 number, since 2×1515393901692 (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 (151539390139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20524539 + ... + 20531920.

It is an arithmetic number, because the mean of its divisors is an integer number (37895112580).

Almost surely, 2151539390169 is an apocalyptic number.

It is an amenable number.

151539390169 is a deficient number, since it is larger than the sum of its proper divisors (41060151).

151539390169 is an equidigital number, since it uses as much as digits as its factorization.

151539390169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41060150.

The product of its (nonzero) digits is 984150, while the sum is 52.

The spelling of 151539390169 in words is "one hundred fifty-one billion, five hundred thirty-nine million, three hundred ninety thousand, one hundred sixty-nine".

Divisors: 1 3691 41056459 151539390169