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54211611245 = 51122924112821
BaseRepresentation
bin110010011111010000…
…111000101001101101
312011221002201012010112
4302133100320221231
51342011133024440
640523210545405
73626262043511
oct623720705155
9164832635115
1054211611245
1120a9a04aa00
12a60b438265
13515c48279c
1428a3c0a141
1516244b9965
hexc9f438a6d

54211611245 has 48 divisors (see below), whose sum is σ = 74284000560. Its totient is φ = 37906176000.

The previous prime is 54211611241. The next prime is 54211611247.

It is a happy number.

54211611245 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 8 ways, for example, as 2148693316 + 52062917929 = 46354^2 + 228173^2 .

It is not a de Polignac number, because 54211611245 - 22 = 54211611241 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54211611241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4221935 + ... + 4234755.

It is an arithmetic number, because the mean of its divisors is an integer number (1547583345).

Almost surely, 254211611245 is an apocalyptic number.

54211611245 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

54211611245 is a deficient number, since it is larger than the sum of its proper divisors (20072389315).

54211611245 is a wasteful number, since it uses less digits than its factorization.

54211611245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13118 (or 13107 counting only the distinct ones).

The product of its digits is 9600, while the sum is 32.

The spelling of 54211611245 in words is "fifty-four billion, two hundred eleven million, six hundred eleven thousand, two hundred forty-five".

Divisors: 1 5 11 29 55 121 145 241 319 605 1205 1595 2651 3509 6989 12821 13255 17545 29161 34945 64105 76879 141031 145805 371809 384395 705155 845669 1551341 1859045 3089861 4089899 4228345 7756705 15449305 20449495 33988471 44988889 89605969 169942355 224944445 373873181 448029845 985665659 1869365905 4928328295 10842322249 54211611245