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51140220305311 = 413904373194683
BaseRepresentation
bin10111010000011000000101…
…01010100011111110011111
320201001221211212211020110001
423220030002222203332133
523200340132344232221
6300433254243355131
713525521222204034
oct1350140252437637
9221057755736401
1051140220305311
111532749a159825
12589b398382aa7
13226c66b0c7177
14c8b2b262938b
155da41b613391
hex2e8302aa3f9f

51140220305311 has 8 divisors (see below), whose sum is σ = 52387693326864. Its totient is φ = 49892754454080.

The previous prime is 51140220305309. The next prime is 51140220305329. The reversal of 51140220305311 is 11350302204115.

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

It is a cyclic number.

It is not a de Polignac number, because 51140220305311 - 21 = 51140220305309 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 51140220305311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51140220303311) 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, 14410576 + ... + 17605258.

It is an arithmetic number, because the mean of its divisors is an integer number (6548461665858).

Almost surely, 251140220305311 is an apocalyptic number.

51140220305311 is a deficient number, since it is larger than the sum of its proper divisors (1247473021553).

51140220305311 is a wasteful number, since it uses less digits than its factorization.

51140220305311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3585161.

The product of its (nonzero) digits is 3600, while the sum is 28.

Adding to 51140220305311 its reverse (11350302204115), we get a palindrome (62490522509426).

The spelling of 51140220305311 in words is "fifty-one trillion, one hundred forty billion, two hundred twenty million, three hundred five thousand, three hundred eleven".

Divisors: 1 41 390437 3194683 16007917 130982003 1247322446471 51140220305311