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51015515410541 = 1139667116917693
BaseRepresentation
bin10111001100101111110011…
…01011001001000001101101
320200122000221222120012122202
423212113321223021001231
523141314233421114131
6300300112040551245
713513515013116203
oct1346277153110155
9220560858505582
1051015515410541
1115289616528620
12587b194a82525
1322609862570c6
14c852424bd073
155d706d599bcb
hex2e65f9ac906d

51015515410541 has 8 divisors (see below), whose sum is σ = 55654693027104. Its totient is φ = 46376571708720.

The previous prime is 51015515410513. The next prime is 51015515410571. The reversal of 51015515410541 is 14501451551015.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2k-51015515410541 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51015515410495 and 51015515410504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51015515410571) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58022510 + ... + 58895183.

It is an arithmetic number, because the mean of its divisors is an integer number (6956836628388).

Almost surely, 251015515410541 is an apocalyptic number.

It is an amenable number.

51015515410541 is a deficient number, since it is larger than the sum of its proper divisors (4639177616563).

51015515410541 is a wasteful number, since it uses less digits than its factorization.

51015515410541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116957371.

The product of its (nonzero) digits is 50000, while the sum is 38.

Adding to 51015515410541 its reverse (14501451551015), we get a palindrome (65516966961556).

The spelling of 51015515410541 in words is "fifty-one trillion, fifteen billion, five hundred fifteen million, four hundred ten thousand, five hundred forty-one".

Divisors: 1 11 39667 436337 116917693 1286094623 4637774128231 51015515410541