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85878067 = 11172341487
BaseRepresentation
bin1010001111001…
…10010100110011
312222121001120011
411013212110303
5133441044232
612304355351
72061644242
oct507462463
9188531504
1085878067
1144526510
1224915b57
1314a3aa32
14b596959
157815547
hex51e6533

85878067 has 32 divisors (see below), whose sum is σ = 106251264. Its totient is φ = 68428800.

The previous prime is 85878061. The next prime is 85878083. The reversal of 85878067 is 76087858.

It is not a de Polignac number, because 85878067 - 23 = 85878059 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 85878067.

It is not an unprimeable number, because it can be changed into a prime (85878061) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 176098 + ... + 176584.

It is an arithmetic number, because the mean of its divisors is an integer number (3320352).

Almost surely, 285878067 is an apocalyptic number.

85878067 is a deficient number, since it is larger than the sum of its proper divisors (20373197).

85878067 is a wasteful number, since it uses less digits than its factorization.

85878067 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 579.

The product of its (nonzero) digits is 752640, while the sum is 49.

The square root of 85878067 is about 9267.0419768122. The cubic root of 85878067 is about 441.1917879374.

The spelling of 85878067 in words is "eighty-five million, eight hundred seventy-eight thousand, sixty-seven".

Divisors: 1 11 17 23 41 187 253 391 451 487 697 943 4301 5357 7667 8279 10373 11201 16031 19967 91069 123211 176341 190417 219637 339439 459241 2094587 3733829 5051651 7807097 85878067