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85202437 = 439194083
BaseRepresentation
bin1010001010000…
…01011000000101
312221022201202211
411011001120011
5133302434222
612242103421
72053131415
oct505013005
9187281684
1085202437
1144104941
122464ab71
1314862358
14b45c645
157730277
hex5141605

85202437 has 4 divisors (see below), whose sum is σ = 85396960. Its totient is φ = 85007916.

The previous prime is 85202371. The next prime is 85202443. The reversal of 85202437 is 73420258.

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 85202437 - 219 = 84678149 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 85202399 and 85202408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85202497) 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, 96603 + ... + 97480.

It is an arithmetic number, because the mean of its divisors is an integer number (21349240).

Almost surely, 285202437 is an apocalyptic number.

It is an amenable number.

85202437 is a deficient number, since it is larger than the sum of its proper divisors (194523).

85202437 is a wasteful number, since it uses less digits than its factorization.

85202437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194522.

The product of its (nonzero) digits is 13440, while the sum is 31.

The square root of 85202437 is about 9230.5166160947. The cubic root of 85202437 is about 440.0317418561.

The spelling of 85202437 in words is "eighty-five million, two hundred two thousand, four hundred thirty-seven".

Divisors: 1 439 194083 85202437