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50101009 = 729246803
BaseRepresentation
bin1011111100011…
…1101100010001
310111021101122221
42333013230101
5100311213014
64545501041
71145565040
oct277075421
9114241587
1050101009
112630a6a2
1214941781
13a4c238a
146922557
1545e9b24
hex2fc7b11

50101009 has 8 divisors (see below), whose sum is σ = 59232960. Its totient is φ = 41462736.

The previous prime is 50101001. The next prime is 50101049. The reversal of 50101009 is 90010105.

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

It is not a de Polignac number, because 50101009 - 23 = 50101001 is a prime.

It is a super-2 number, since 2×501010092 = 5020222205636162, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 50100983 and 50101001.

It is not an unprimeable number, because it can be changed into a prime (50101001) 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, 123199 + ... + 123604.

It is an arithmetic number, because the mean of its divisors is an integer number (7404120).

Almost surely, 250101009 is an apocalyptic number.

It is an amenable number.

50101009 is a deficient number, since it is larger than the sum of its proper divisors (9131951).

50101009 is a wasteful number, since it uses less digits than its factorization.

50101009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246839.

The product of its (nonzero) digits is 45, while the sum is 16.

The square root of 50101009 is about 7078.2066231497. The cubic root of 50101009 is about 368.6510632208.

The spelling of 50101009 in words is "fifty million, one hundred one thousand, nine".

Divisors: 1 7 29 203 246803 1727621 7157287 50101009