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169130623230529 = 7321781512
BaseRepresentation
bin100110011101001011001010…
…101101111110001001000001
3211011211201200221011111210021
4212131023022231332021001
5134132014004021334104
61355413311412533441
750424166340165242
oct4635131255761101
9734751627144707
10169130623230529
1149987992650894
1216b76793621281
13734ac458c91ac
142da9d743accc9
15148472046d754
hex99d2cab7e241

169130623230529 has 9 divisors (see below), whose sum is σ = 171480181417059. Its totient is φ = 166812829016400.

The previous prime is 169130623230523. The next prime is 169130623230551. The reversal of 169130623230529 is 925032326031961.

The square root of 169130623230529 is 13005023.

It is a perfect power (a square), and thus also a powerful number.

169130623230529 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 96006780873025 + 73123842357504 = 9798305^2 + 8551248^2 .

It is a de Polignac number, because none of the positive numbers 2k-169130623230529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (169130623230523) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 949277604 + ... + 949455754.

Almost surely, 2169130623230529 is an apocalyptic number.

169130623230529 is the 13005023-rd square number.

169130623230529 is the 6502512-nd centered octagonal number.

It is an amenable number.

169130623230529 is a deficient number, since it is larger than the sum of its proper divisors (2349558186530).

169130623230529 is an frugal number, since it uses more digits than its factorization.

169130623230529 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 356448 (or 178224 counting only the distinct ones).

The product of its (nonzero) digits is 3149280, while the sum is 52.

The spelling of 169130623230529 in words is "one hundred sixty-nine trillion, one hundred thirty billion, six hundred twenty-three million, two hundred thirty thousand, five hundred twenty-nine".

Divisors: 1 73 5329 178151 13005023 949366679 31737778801 2316857852473 169130623230529