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55144115730 = 23251160679181
BaseRepresentation
bin110011010110110110…
…000110111000010010
312021100002101022210200
4303112312012320102
51400413343200410
641155521440030
73661344151464
oct632666067022
9167302338720
1055144115730
1121428463370
12a82b7a0016
13527a71a0a2
1429519c8134
15167b2b73c0
hexcd6d86e12

55144115730 has 96 divisors (see below), whose sum is σ = 156451583808. Its totient is φ = 13364611200.

The previous prime is 55144115729. The next prime is 55144115731. The reversal of 55144115730 is 3751144155.

55144115730 is a `hidden beast` number, since 551 + 44 + 11 + 57 + 3 + 0 = 666.

55144115730 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (55144115729) and next prime (55144115731).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (55144115731) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6001740 + ... + 6010920.

It is an arithmetic number, because the mean of its divisors is an integer number (1629703998).

Almost surely, 255144115730 is an apocalyptic number.

55144115730 is an abundant number, since it is smaller than the sum of its proper divisors (101307468078).

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

55144115730 is a wasteful number, since it uses less digits than its factorization.

55144115730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15272 (or 15269 counting only the distinct ones).

The product of its (nonzero) digits is 42000, while the sum is 36.

Adding to 55144115730 its reverse (3751144155), we get a palindrome (58895259885).

The spelling of 55144115730 in words is "fifty-five billion, one hundred forty-four million, one hundred fifteen thousand, seven hundred thirty".

Divisors: 1 2 3 5 6 9 10 11 15 18 22 30 33 45 55 66 90 99 110 165 198 330 495 990 6067 9181 12134 18201 18362 27543 30335 36402 45905 54603 55086 60670 66737 82629 91005 91810 100991 109206 133474 137715 165258 182010 200211 201982 273015 275430 302973 333685 400422 413145 504955 546030 600633 605946 667370 826290 908919 1001055 1009910 1201266 1514865 1817838 2002110 3003165 3029730 4544595 6006330 9089190 55701127 111402254 167103381 278505635 334206762 501310143 557011270 612712397 835516905 1002620286 1225424794 1671033810 1838137191 2506550715 3063561985 3676274382 5013101430 5514411573 6127123970 9190685955 11028823146 18381371910 27572057865 55144115730