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50161001 = 117362467
BaseRepresentation
bin1011111101011…
…0010101101001
310111101102221212
42333112111221
5100320123001
64551042505
71146234662
oct277262551
9114342855
1050161001
1126350780
1214970435
13a513787
14693a369
15460c7bb
hex2fd6569

50161001 has 8 divisors (see below), whose sum is σ = 55471584. Its totient is φ = 44975520.

The previous prime is 50160989. The next prime is 50161021. The reversal of 50161001 is 10016105.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-50161001 is a prime.

It is a super-2 number, since 2×501610012 = 5032252042644002, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50161021) 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, 30431 + ... + 32036.

It is an arithmetic number, because the mean of its divisors is an integer number (6933948).

Almost surely, 250161001 is an apocalyptic number.

It is an amenable number.

50161001 is a deficient number, since it is larger than the sum of its proper divisors (5310583).

50161001 is a wasteful number, since it uses less digits than its factorization.

50161001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62551.

The product of its (nonzero) digits is 30, while the sum is 14.

The square root of 50161001 is about 7082.4431519074. The cubic root of 50161001 is about 368.7981480365.

Adding to 50161001 its reverse (10016105), we get a palindrome (60177106).

Subtracting from 50161001 its reverse (10016105), we obtain a square (40144896 = 63362).

It can be divided in two parts, 50 and 161001, that added together give a 5-th power (161051 = 115).

The spelling of 50161001 in words is "fifty million, one hundred sixty-one thousand, one".

Divisors: 1 11 73 803 62467 687137 4560091 50161001