Search a number
-
+
61345101560 = 2351533627539
BaseRepresentation
bin111001001000011100…
…111111011011111000
312212100020122001012112
4321020130333123320
52001113321222220
644103114231452
74301121521411
oct711034773370
9185306561175
1061345101560
112401a78a846
12ba80425588
135a28326a82
142d7d394808
1518e08a15c5
hexe4873f6f8

61345101560 has 16 divisors (see below), whose sum is σ = 138026478600. Its totient is φ = 24538040608.

The previous prime is 61345101557. The next prime is 61345101593. The reversal of 61345101560 is 6510154316.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 766813730 + ... + 766813809.

Almost surely, 261345101560 is an apocalyptic number.

It is an amenable number.

61345101560 is an abundant number, since it is smaller than the sum of its proper divisors (76681377040).

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

61345101560 is a wasteful number, since it uses less digits than its factorization.

61345101560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1533627550 (or 1533627546 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 32.

Adding to 61345101560 its reverse (6510154316), we get a palindrome (67855255876).

The spelling of 61345101560 in words is "sixty-one billion, three hundred forty-five million, one hundred one thousand, five hundred sixty".

Divisors: 1 2 4 5 8 10 20 40 1533627539 3067255078 6134510156 7668137695 12269020312 15336275390 30672550780 61345101560