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83213575309 = 991155953861
BaseRepresentation
bin100110101111111101…
…0100110010010001101
321221210022000121120201
41031133322212102031
52330410133402214
6102121111413501
76004052501554
oct1153772462215
9257708017521
1083213575309
1132321991847
1214164084291
137b01b47677
144055898d9b
15227069e274
hex135fea648d

83213575309 has 8 divisors (see below), whose sum is σ = 83352522240. Its totient is φ = 83074741200.

The previous prime is 83213575303. The next prime is 83213575337. The reversal of 83213575309 is 90357531238.

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

It is a cyclic number.

It is not a de Polignac number, because 83213575309 - 215 = 83213542541 is a prime.

It is a super-2 number, since 2×832135753092 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83213575303) 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, 1518039 + ... + 1571899.

It is an arithmetic number, because the mean of its divisors is an integer number (10419065280).

Almost surely, 283213575309 is an apocalyptic number.

It is an amenable number.

83213575309 is a deficient number, since it is larger than the sum of its proper divisors (138946931).

83213575309 is a wasteful number, since it uses less digits than its factorization.

83213575309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56411.

The product of its (nonzero) digits is 680400, while the sum is 46.

The spelling of 83213575309 in words is "eighty-three billion, two hundred thirteen million, five hundred seventy-five thousand, three hundred nine".

Divisors: 1 991 1559 53861 1544969 53376251 83969299 83213575309