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143032970809 = 131228872
BaseRepresentation
bin1000010100110101101…
…1011110111000111001
3111200012012202202112101
42011031123132320321
54320412420031214
6145413004543401
713222330122541
oct2051533367071
9450165682471
10143032970809
1155729423a93
1223879551b61
131064604b791
146ccc378321
153ac2129774
hex214d6dee39

143032970809 has 9 divisors (see below), whose sum is σ = 144183102501. Its totient is φ = 141891950460.

The previous prime is 143032970713. The next prime is 143032970813. The reversal of 143032970809 is 908079230341.

The square root of 143032970809 is 378197.

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

It is a de Polignac number, because none of the positive numbers 2k-143032970809 is a prime.

It is a super-2 number, since 2×1430329708092 (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 (143032970869) 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, 49542364 + ... + 49545250.

Almost surely, 2143032970809 is an apocalyptic number.

143032970809 is the 378197-th square number.

143032970809 is the 189099-th centered octagonal number.

It is an amenable number.

143032970809 is a deficient number, since it is larger than the sum of its proper divisors (1150131692).

143032970809 is an frugal number, since it uses more digits than its factorization.

143032970809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6036 (or 3018 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 46.

The spelling of 143032970809 in words is "one hundred forty-three billion, thirty-two million, nine hundred seventy thousand, eight hundred nine".

Divisors: 1 131 2887 17161 378197 8334769 49543807 1091854739 143032970809