Search a number
-
+
13120230122 = 238916864049
BaseRepresentation
bin11000011100000011…
…01101001011101010
31020212101000202011222
430032001231023222
5203332234330442
610005524022042
7643063054526
oct141601551352
936771022158
1013120230122
11562303409a
122661b31922
13131127959c
148c6704d86
1551bca08d2
hex30e06d2ea

13120230122 has 8 divisors (see below), whose sum is σ = 19730938500. Its totient is φ = 6543250624.

The previous prime is 13120230121. The next prime is 13120230139. The reversal of 13120230122 is 22103202131.

It can be written as a sum of positive squares in 2 ways, for example, as 12106380841 + 1013849281 = 110029^2 + 31841^2 .

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

It is a super-2 number, since 2×131202301222 (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13120230122.

It is not an unprimeable number, because it can be changed into a prime (13120230121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8431247 + ... + 8432802.

Almost surely, 213120230122 is an apocalyptic number.

13120230122 is a deficient number, since it is larger than the sum of its proper divisors (6610708378).

13120230122 is a wasteful number, since it uses less digits than its factorization.

13120230122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16864440.

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

Adding to 13120230122 its reverse (22103202131), we get a palindrome (35223432253).

The spelling of 13120230122 in words is "thirteen billion, one hundred twenty million, two hundred thirty thousand, one hundred twenty-two".

Divisors: 1 2 389 778 16864049 33728098 6560115061 13120230122