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85892438 = 242946219
BaseRepresentation
bin1010001111010…
…01110101010110
312222121210021102
411013221311112
5133442024223
612304550102
72062034162
oct507516526
9188553242
1085892438
1144536295
1224922332
1314a44438
14b59bca2
157819928
hex51e9d56

85892438 has 4 divisors (see below), whose sum is σ = 128838660. Its totient is φ = 42946218.

The previous prime is 85892423. The next prime is 85892447. The reversal of 85892438 is 83429858.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 83429858 = 241714929.

It is a junction number, because it is equal to n+sod(n) for n = 85892392 and 85892401.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21473108 + ... + 21473111.

It is an arithmetic number, because the mean of its divisors is an integer number (32209665).

Almost surely, 285892438 is an apocalyptic number.

85892438 is a deficient number, since it is larger than the sum of its proper divisors (42946222).

85892438 is a wasteful number, since it uses less digits than its factorization.

85892438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42946221.

The product of its digits is 552960, while the sum is 47.

The square root of 85892438 is about 9267.8173266417. The cubic root of 85892438 is about 441.2163965240.

The spelling of 85892438 in words is "eighty-five million, eight hundred ninety-two thousand, four hundred thirty-eight".

Divisors: 1 2 42946219 85892438