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1050021005 = 51119091291
BaseRepresentation
bin111110100101100…
…000110010001101
32201011210121000212
4332211200302031
54122301133010
6252105332205
735010013505
oct7645406215
92634717025
101050021005
11499789360
12253797065
13139702007
149d64ca05
15622b2505
hex3e960c8d

1050021005 has 8 divisors (see below), whose sum is σ = 1374573024. Its totient is φ = 763651600.

The previous prime is 1050020989. The next prime is 1050021041. The reversal of 1050021005 is 5001200501.

1050021005 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 1050021005 - 24 = 1050020989 is a prime.

It is a super-2 number, since 2×10500210052 = 2205088221882420050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9545591 + ... + 9545700.

It is an arithmetic number, because the mean of its divisors is an integer number (171821628).

Almost surely, 21050021005 is an apocalyptic number.

It is an amenable number.

1050021005 is a deficient number, since it is larger than the sum of its proper divisors (324552019).

1050021005 is a wasteful number, since it uses less digits than its factorization.

1050021005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19091307.

The product of its (nonzero) digits is 50, while the sum is 14.

The square root of 1050021005 is about 32404.0276046050. The cubic root of 1050021005 is about 1016.4031343587.

Adding to 1050021005 its reverse (5001200501), we get a palindrome (6051221506).

The spelling of 1050021005 in words is "one billion, fifty million, twenty-one thousand, five".

Divisors: 1 5 11 55 19091291 95456455 210004201 1050021005