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50043553021 = 71117191200159
BaseRepresentation
bin101110100110110101…
…000000010011111101
311210011121202220010201
4232212311000103331
51304442122144041
634553435003501
73421061116330
oct564665002375
9153147686121
1050043553021
111a250310090
129847599591
134946aab847
1425ca42a617
15147d5e9631
hexba6d404fd

50043553021 has 32 divisors (see below), whose sum is σ = 66408284160. Its totient is φ = 36508819200.

The previous prime is 50043552931. The next prime is 50043553031. The reversal of 50043553021 is 12035534005.

It is not a de Polignac number, because 50043553021 - 29 = 50043552509 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50043553031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 149940 + ... + 350098.

It is an arithmetic number, because the mean of its divisors is an integer number (2075258880).

Almost surely, 250043553021 is an apocalyptic number.

It is an amenable number.

50043553021 is a deficient number, since it is larger than the sum of its proper divisors (16364731139).

50043553021 is a wasteful number, since it uses less digits than its factorization.

50043553021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200385.

The product of its (nonzero) digits is 9000, while the sum is 28.

The spelling of 50043553021 in words is "fifty billion, forty-three million, five hundred fifty-three thousand, twenty-one".

Divisors: 1 7 11 17 77 119 187 191 1309 1337 2101 3247 14707 22729 35717 200159 250019 1401113 2201749 3402703 15412243 23818921 37429733 38230369 262008131 267612583 420534059 649916273 2943738413 4549413911 7149079003 50043553021