Search a number
-
+
55061645649983 = 723388493815057
BaseRepresentation
bin11001000010100000010011…
…10101000110100000111111
321012221211201202102212200122
430201100021311012200333
524204112222241244413
6313034545410045155
714412033623520320
oct1441201165064077
9235854652385618
1055061645649983
11165a9570573915
1262133958797bb
1324953a21715bb
14d84dd821c447
1565742e2ee108
hex321409d4683f

55061645649983 has 16 divisors (see below), whose sum is σ = 63204828897600. Its totient is φ = 46987816759296.

The previous prime is 55061645649973. The next prime is 55061645650021. The reversal of 55061645649983 is 38994654616055.

It is not a de Polignac number, because 55061645649983 - 222 = 55061641455679 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55061645649953) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12525191 + ... + 16340247.

It is an arithmetic number, because the mean of its divisors is an integer number (3950301806100).

Almost surely, 255061645649983 is an apocalyptic number.

55061645649983 is a deficient number, since it is larger than the sum of its proper divisors (8143183247617).

55061645649983 is a wasteful number, since it uses less digits than its factorization.

55061645649983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3824146.

The product of its (nonzero) digits is 839808000, while the sum is 71.

The spelling of 55061645649983 in words is "fifty-five trillion, sixty-one billion, six hundred forty-five million, six hundred forty-nine thousand, nine hundred eighty-three".

Divisors: 1 7 233 1631 8849 61943 2061817 3815057 14432719 26705399 888908281 6222357967 33759439393 236316075751 7865949378569 55061645649983