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85945190 = 2519743627
BaseRepresentation
bin1010001111101…
…10101101100110
312222201110122012
411013312231212
5134000221230
612310034222
72062344032
oct507665546
9188643565
1085945190
1144571991
1224948972
1314a62456
14b5b31c2
15782a395
hex51f6b66

85945190 has 16 divisors (see below), whose sum is σ = 155490192. Its totient is φ = 34202784.

The previous prime is 85945147. The next prime is 85945193. The reversal of 85945190 is 9154958.

It is a happy number.

It is a super-2 number, since 2×859451902 = 14773151368272200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85945193) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19844 + ... + 23783.

It is an arithmetic number, because the mean of its divisors is an integer number (9718137).

Almost surely, 285945190 is an apocalyptic number.

85945190 is a deficient number, since it is larger than the sum of its proper divisors (69545002).

85945190 is a wasteful number, since it uses less digits than its factorization.

85945190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43831.

The product of its (nonzero) digits is 64800, while the sum is 41.

The square root of 85945190 is about 9270.6628673466. The cubic root of 85945190 is about 441.3067043734.

The spelling of 85945190 in words is "eighty-five million, nine hundred forty-five thousand, one hundred ninety".

Divisors: 1 2 5 10 197 394 985 1970 43627 87254 218135 436270 8594519 17189038 42972595 85945190