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84309037 = 791067203
BaseRepresentation
bin1010000011001…
…11010000101101
312212122100020221
411001213100231
5133040342122
612211011341
72042420641
oct501472055
9185570227
1084309037
114365469a
1224299b51
131460b807
14b2a8c21
1576056c7
hex506742d

84309037 has 4 divisors (see below), whose sum is σ = 85376320. Its totient is φ = 83241756.

The previous prime is 84309031. The next prime is 84309041. The reversal of 84309037 is 73090348.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 84309037 - 219 = 83784749 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 84308993 and 84309011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84309031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 533523 + ... + 533680.

It is an arithmetic number, because the mean of its divisors is an integer number (21344080).

Almost surely, 284309037 is an apocalyptic number.

It is an amenable number.

84309037 is a deficient number, since it is larger than the sum of its proper divisors (1067283).

84309037 is a wasteful number, since it uses less digits than its factorization.

84309037 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1067282.

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 84309037 is about 9181.9952624688. The cubic root of 84309037 is about 438.4883334628.

The spelling of 84309037 in words is "eighty-four million, three hundred nine thousand, thirty-seven".

Divisors: 1 79 1067203 84309037