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84249688 = 23172272729
BaseRepresentation
bin1010000010110…
…00110001011000
312212112022211211
411001120301120
5133031442223
612205432504
72042052625
oct501306130
9185468754
1084249688
1143614046
122426b734
13145ba7b3
14b29134c
1575e2d0d
hex5058c58

84249688 has 32 divisors (see below), whose sum is σ = 168058800. Its totient is φ = 39457792.

The previous prime is 84249673. The next prime is 84249689. The reversal of 84249688 is 88694248.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84249689) 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, 29508 + ... + 32236.

Almost surely, 284249688 is an apocalyptic number.

It is an amenable number.

84249688 is a deficient number, since it is larger than the sum of its proper divisors (83809112).

84249688 is a wasteful number, since it uses less digits than its factorization.

84249688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2979 (or 2975 counting only the distinct ones).

The product of its digits is 884736, while the sum is 49.

The square root of 84249688 is about 9178.7628796042. The cubic root of 84249688 is about 438.3854186237.

The spelling of 84249688 in words is "eighty-four million, two hundred forty-nine thousand, six hundred eighty-eight".

Divisors: 1 2 4 8 17 34 68 136 227 454 908 1816 2729 3859 5458 7718 10916 15436 21832 30872 46393 92786 185572 371144 619483 1238966 2477932 4955864 10531211 21062422 42124844 84249688