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85447710 = 2345105491
BaseRepresentation
bin1010001011111…
…01010000011110
312221210012020000
411011331100132
5133333311320
612251235130
72055202455
oct505752036
9187705200
1085447710
1144262147
1224748aa6
1314919b9a
14b4c3b9c
15777cc90
hex517d41e

85447710 has 40 divisors (see below), whose sum is σ = 229761576. Its totient is φ = 22785840.

The previous prime is 85447673. The next prime is 85447711. The reversal of 85447710 is 1774458.

It is a super-2 number, since 2×854477102 = 14602622288488200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85447711) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 51936 + ... + 53555.

Almost surely, 285447710 is an apocalyptic number.

85447710 is an abundant number, since it is smaller than the sum of its proper divisors (144313866).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

85447710 is a wasteful number, since it uses less digits than its factorization.

85447710 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105510 (or 105501 counting only the distinct ones).

The product of its (nonzero) digits is 31360, while the sum is 36.

The square root of 85447710 is about 9243.7930526381. The cubic root of 85447710 is about 440.4535784067.

The spelling of 85447710 in words is "eighty-five million, four hundred forty-seven thousand, seven hundred ten".

Divisors: 1 2 3 5 6 9 10 15 18 27 30 45 54 81 90 135 162 270 405 810 105491 210982 316473 527455 632946 949419 1054910 1582365 1898838 2848257 3164730 4747095 5696514 8544771 9494190 14241285 17089542 28482570 42723855 85447710