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83470357 = 1711294349
BaseRepresentation
bin1001111100110…
…10100000010101
312211001201210201
410332122200111
5132332022412
612141020501
72032325545
oct476324025
9184051721
1083470357
1143131573
1223b54731
13143a6b59
14b12b325
1574dbe57
hex4f9a815

83470357 has 8 divisors (see below), whose sum is σ = 88479000. Its totient is φ = 78472704.

The previous prime is 83470337. The next prime is 83470367. The reversal of 83470357 is 75307438.

It can be written as a sum of positive squares in 4 ways, for example, as 40401 + 83429956 = 201^2 + 9134^2 .

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 83470357 - 219 = 82946069 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 (83470307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17019 + ... + 21367.

It is an arithmetic number, because the mean of its divisors is an integer number (11059875).

Almost surely, 283470357 is an apocalyptic number.

It is an amenable number.

83470357 is a deficient number, since it is larger than the sum of its proper divisors (5008643).

83470357 is a wasteful number, since it uses less digits than its factorization.

83470357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5495.

The product of its (nonzero) digits is 70560, while the sum is 37.

The square root of 83470357 is about 9136.2113044741. The cubic root of 83470357 is about 437.0295036695.

The spelling of 83470357 in words is "eighty-three million, four hundred seventy thousand, three hundred fifty-seven".

Divisors: 1 17 1129 4349 19193 73933 4910021 83470357