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86213311357 = 192238818037
BaseRepresentation
bin101000001001010110…
…1101011101101111101
322020112100112222211211
41100102231223231331
52403031101430412
6103334510244421
76141306024655
oct1202255535575
9266470488754
1086213311357
1133621191948
12148607b6711
13818c468a04
14425c033365
152398bdeca7
hex1412b6bb7d

86213311357 has 6 divisors (see below), whose sum is σ = 90989672478. Its totient is φ = 81675768312.

The previous prime is 86213311337. The next prime is 86213311417. The reversal of 86213311357 is 75311331268.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 86126988676 + 86322681 = 293474^2 + 9291^2 .

It is not a de Polignac number, because 86213311357 - 211 = 86213309309 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 (86213311337) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 119408658 + ... + 119409379.

It is an arithmetic number, because the mean of its divisors is an integer number (15164945413).

Almost surely, 286213311357 is an apocalyptic number.

It is an amenable number.

86213311357 is a deficient number, since it is larger than the sum of its proper divisors (4776361121).

86213311357 is a wasteful number, since it uses less digits than its factorization.

86213311357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238818075 (or 238818056 counting only the distinct ones).

The product of its digits is 90720, while the sum is 40.

The spelling of 86213311357 in words is "eighty-six billion, two hundred thirteen million, three hundred eleven thousand, three hundred fifty-seven".

Divisors: 1 19 361 238818037 4537542703 86213311357