Search a number
-
+
55461528031 = 731373916831
BaseRepresentation
bin110011101001110000…
…111100000111011111
312022011012122112121211
4303221300330013133
51402041122344111
641251221005251
74002250132000
oct635160740737
9168135575554
1055461528031
112158064a988
12a8b9b53827
1352cb403510
142981c111a7
1516990b5521
hexce9c3c1df

55461528031 has 32 divisors (see below), whose sum is σ = 69751808000. Its totient is φ = 43819665120.

The previous prime is 55461527993. The next prime is 55461528037. The reversal of 55461528031 is 13082516455.

It is not a de Polignac number, because 55461528031 - 215 = 55461495263 is a prime.

It is a super-2 number, since 2×554615280312 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55461528037) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3286786 + ... + 3303616.

It is an arithmetic number, because the mean of its divisors is an integer number (2179744000).

Almost surely, 255461528031 is an apocalyptic number.

55461528031 is a deficient number, since it is larger than the sum of its proper divisors (14290279969).

55461528031 is a wasteful number, since it uses less digits than its factorization.

55461528031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17604 (or 17590 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 40.

The spelling of 55461528031 in words is "fifty-five billion, four hundred sixty-one million, five hundred twenty-eight thousand, thirty-one".

Divisors: 1 7 13 49 91 343 637 739 4459 5173 9607 16831 36211 67249 117817 218803 253477 470743 824719 1531621 3295201 5773033 10721347 12438109 75049429 87066763 161695417 609467341 1131867919 4266271387 7923075433 55461528031