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85130542 = 273124097
BaseRepresentation
bin1010001001011…
…11110100101110
312221012002011001
411010233310232
5133243134132
612240350514
72052412000
oct504576456
9187162131
1085130542
1144065922
122461543a
1314838703
14b440370
157718ce7
hex512fd2e

85130542 has 16 divisors (see below), whose sum is σ = 148917600. Its totient is φ = 36484224.

The previous prime is 85130533. The next prime is 85130587. The reversal of 85130542 is 24503158.

It is a self number, because there is not a number n which added to its sum of digits gives 85130542.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61363 + ... + 62734.

It is an arithmetic number, because the mean of its divisors is an integer number (9307350).

Almost surely, 285130542 is an apocalyptic number.

85130542 is a deficient number, since it is larger than the sum of its proper divisors (63787058).

85130542 is a wasteful number, since it uses less digits than its factorization.

85130542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124120 (or 124106 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 85130542 is about 9226.6213751297. The cubic root of 85130542 is about 439.9079387283.

The spelling of 85130542 in words is "eighty-five million, one hundred thirty thousand, five hundred forty-two".

Divisors: 1 2 7 14 49 98 343 686 124097 248194 868679 1737358 6080753 12161506 42565271 85130542