Search a number
-
+
61206010512 = 2431275125219
BaseRepresentation
bin111001000000001010…
…011001101010010000
312211222112220111011020
4321000022121222100
52000322214314022
644041225115440
74264512335223
oct710012315220
9184875814136
1061206010512
1123a59219669
12ba41928b80
135a0557738a
142d68b095ba
1518d357935c
hexe40299a90

61206010512 has 20 divisors (see below), whose sum is σ = 158115527280. Its totient is φ = 20402003488.

The previous prime is 61206010501. The next prime is 61206010517. The reversal of 61206010512 is 21501060216.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (61206010517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 637562562 + ... + 637562657.

It is an arithmetic number, because the mean of its divisors is an integer number (7905776364).

Almost surely, 261206010512 is an apocalyptic number.

It is an amenable number.

61206010512 is an abundant number, since it is smaller than the sum of its proper divisors (96909516768).

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

61206010512 is a wasteful number, since it uses less digits than its factorization.

61206010512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1275125230 (or 1275125224 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 24.

Adding to 61206010512 its reverse (21501060216), we get a palindrome (82707070728).

The spelling of 61206010512 in words is "sixty-one billion, two hundred six million, ten thousand, five hundred twelve".

Divisors: 1 2 3 4 6 8 12 16 24 48 1275125219 2550250438 3825375657 5100500876 7650751314 10201001752 15301502628 20402003504 30603005256 61206010512