Search a number
-
+
13010123220 = 2235216835387
BaseRepresentation
bin11000001110111011…
…01011100111010100
31020120200211201220120
430013131223213110
5203121042420340
65550552031540
7640255136253
oct140735534724
936520751816
1013010123220
11557696a156
1226310925b0
1312c4507683
148b5c4279a
155122a14d0
hex30776b9d4

13010123220 has 24 divisors (see below), whose sum is σ = 36428345184. Its totient is φ = 3469366176.

The previous prime is 13010123197. The next prime is 13010123263. The reversal of 13010123220 is 2232101031.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 13010123220.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 108417634 + ... + 108417753.

It is an arithmetic number, because the mean of its divisors is an integer number (1517847716).

Almost surely, 213010123220 is an apocalyptic number.

13010123220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13010123220 is an abundant number, since it is smaller than the sum of its proper divisors (23418221964).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13010123220 is a wasteful number, since it uses less digits than its factorization.

13010123220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216835399 (or 216835397 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 13010123220 its reverse (2232101031), we get a palindrome (15242224251).

The spelling of 13010123220 in words is "thirteen billion, ten million, one hundred twenty-three thousand, two hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 216835387 433670774 650506161 867341548 1084176935 1301012322 2168353870 2602024644 3252530805 4336707740 6505061610 13010123220