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2030143121 = 37349157217
BaseRepresentation
bin111100100000001…
…1000011010010001
312020111001221210222
41321000120122101
513124204034441
6533241002425
7101210634416
oct17100303221
95214057728
102030143121
11951a65636
12487a83415
1326479c526
141538a410d
15bd368d4b
hex79018691

2030143121 has 8 divisors (see below), whose sum is σ = 2090999400. Its totient is φ = 1969602048.

The previous prime is 2030143109. The next prime is 2030143151. The reversal of 2030143121 is 1213410302.

Adding to 2030143121 its reverse (1213410302), we get a palindrome (3243553423).

It can be written as a sum of positive squares in 4 ways, for example, as 859134721 + 1171008400 = 29311^2 + 34220^2 .

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 2030143121 - 210 = 2030142097 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2030143121.

It is not an unprimeable number, because it can be changed into a prime (2030143151) 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, 65696 + ... + 91521.

It is an arithmetic number, because the mean of its divisors is an integer number (261374925).

Almost surely, 22030143121 is an apocalyptic number.

It is an amenable number.

2030143121 is a deficient number, since it is larger than the sum of its proper divisors (60856279).

2030143121 is a wasteful number, since it uses less digits than its factorization.

2030143121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157603.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 2030143121 is about 45057.1095499922. The cubic root of 2030143121 is about 1266.2191730048.

The spelling of 2030143121 in words is "two billion, thirty million, one hundred forty-three thousand, one hundred twenty-one".

Divisors: 1 37 349 12913 157217 5817029 54868733 2030143121