Search a number
-
+
51030185351641 = 3747157911858309
BaseRepresentation
bin10111001101001011001000…
…00100100001100111011001
320200200102211100122102122121
423212211210010201213121
523142034304422223031
6300310535444421241
713514544364423606
oct1346454404414731
9220612740572577
1051030185351641
1115294864305491
125881ba99a7821
1322621835ac622
14c85c349476ad
155d762b414011
hex2e69641219d9

51030185351641 has 16 divisors (see below), whose sum is σ = 53527891092480. Its totient is φ = 48591483577920.

The previous prime is 51030185351609. The next prime is 51030185351671. The reversal of 51030185351641 is 14615358103015.

It is a cyclic number.

It is not a de Polignac number, because 51030185351641 - 25 = 51030185351609 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51030185351671) 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, 26531395 + ... + 28389703.

It is an arithmetic number, because the mean of its divisors is an integer number (3345493193280).

Almost surely, 251030185351641 is an apocalyptic number.

It is an amenable number.

51030185351641 is a deficient number, since it is larger than the sum of its proper divisors (2497705740839).

51030185351641 is a wasteful number, since it uses less digits than its factorization.

51030185351641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1874184.

The product of its (nonzero) digits is 216000, while the sum is 43.

The spelling of 51030185351641 in words is "fifty-one trillion, thirty billion, one hundred eighty-five million, three hundred fifty-one thousand, six hundred forty-one".

Divisors: 1 37 47 1739 15791 584267 742177 1858309 27460549 68757433 87340523 3231599351 29344557419 1085748624503 1379194198693 51030185351641