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54261340031 = 2310934962017
BaseRepresentation
bin110010100010001110…
…100101011101111111
312012001120021200012102
4302202032211131333
51342111400340111
640532144455315
73630434531423
oct624216453577
9165046250172
1054261340031
1121015125978
12a62401a53b
1351698745c2
1428aa672b83
151628a3e13b
hexca23a577f

54261340031 has 16 divisors (see below), whose sum is σ = 57304632000. Its totient is φ = 51277805568.

The previous prime is 54261339949. The next prime is 54261340103. The reversal of 54261340031 is 13004316245.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-54261340031 is a prime.

It is a super-2 number, since 2×542613400312 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 54261339976 and 54261340003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54261310031) 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, 843935 + ... + 905951.

It is an arithmetic number, because the mean of its divisors is an integer number (3581539500).

Almost surely, 254261340031 is an apocalyptic number.

54261340031 is a deficient number, since it is larger than the sum of its proper divisors (3043291969).

54261340031 is a wasteful number, since it uses less digits than its factorization.

54261340031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62498.

The product of its (nonzero) digits is 8640, while the sum is 29.

Adding to 54261340031 its reverse (13004316245), we get a palindrome (67265656276).

The spelling of 54261340031 in words is "fifty-four billion, two hundred sixty-one million, three hundred forty thousand, thirty-one".

Divisors: 1 23 109 349 2507 8027 38041 62017 874943 1426391 6759853 21643933 155476619 497810459 2359188697 54261340031