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50320215401 = 121741347753
BaseRepresentation
bin101110110111010100…
…011000110101101001
311210212220100210120112
4232313110120311221
51311023433343101
635041120504105
73430660526231
oct566724306551
9153786323515
1050320215401
111a3824a4685
12990417b035
13498c1c7cb1
142615086cc1
151497a486bb
hexbb7518d69

50320215401 has 4 divisors (see below), whose sum is σ = 50361564372. Its totient is φ = 50278866432.

The previous prime is 50320215367. The next prime is 50320215427. The reversal of 50320215401 is 10451202305.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 17862589801 + 32457625600 = 133651^2 + 180160^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-50320215401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50320215461) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20672660 + ... + 20675093.

It is an arithmetic number, because the mean of its divisors is an integer number (12590391093).

Almost surely, 250320215401 is an apocalyptic number.

It is an amenable number.

50320215401 is a deficient number, since it is larger than the sum of its proper divisors (41348971).

50320215401 is a wasteful number, since it uses less digits than its factorization.

50320215401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41348970.

The product of its (nonzero) digits is 1200, while the sum is 23.

Adding to 50320215401 its reverse (10451202305), we get a palindrome (60771417706).

The spelling of 50320215401 in words is "fifty billion, three hundred twenty million, two hundred fifteen thousand, four hundred one".

Divisors: 1 1217 41347753 50320215401