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50702107221 = 351923474679
BaseRepresentation
bin101111001110000101…
…001100001001010101
311211212111221220200000
4233032011030021111
51312314214412341
635143042041513
73443305541403
oct571605141125
9154774856600
1050702107221
111a559021657
1299b0049299
134a2036929c
14264da96473
1514bb3318b6
hexbce14c255

50702107221 has 48 divisors (see below), whose sum is σ = 79997299200. Its totient is φ = 32001898608.

The previous prime is 50702107207. The next prime is 50702107231. The reversal of 50702107221 is 12270120705.

It is not a de Polignac number, because 50702107221 - 210 = 50702106197 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50702107231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 10833760 + ... + 10838438.

It is an arithmetic number, because the mean of its divisors is an integer number (1666610400).

Almost surely, 250702107221 is an apocalyptic number.

It is an amenable number.

50702107221 is a deficient number, since it is larger than the sum of its proper divisors (29295191979).

50702107221 is a wasteful number, since it uses less digits than its factorization.

50702107221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7060 (or 7048 counting only the distinct ones).

The product of its (nonzero) digits is 1960, while the sum is 27.

Adding to 50702107221 its reverse (12270120705), we get a palindrome (62972227926).

The spelling of 50702107221 in words is "fifty billion, seven hundred two million, one hundred seven thousand, two hundred twenty-one".

Divisors: 1 3 9 19 27 57 81 171 243 513 1539 2347 4617 4679 7041 14037 21123 42111 44593 63369 88901 126333 133779 190107 266703 378999 401337 570321 800109 1136997 1204011 2400327 3612033 7200981 10836099 10981613 21602943 32944839 98834517 208650647 296503551 625951941 889510653 1877855823 2668531959 5633567469 16900702407 50702107221