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87693434 = 2231906379
BaseRepresentation
bin1010011101000…
…01100001111010
320010000021202222
411032201201322
5134422142214
612411324042
72113244663
oct516414172
9203007688
1087693434
1145556414
1225450622
131522510a
14b90a36a
157a7338e
hex53a187a

87693434 has 8 divisors (see below), whose sum is σ = 137259360. Its totient is φ = 41940316.

The previous prime is 87693427. The next prime is 87693439. The reversal of 87693434 is 43439678.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (87693439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 953144 + ... + 953235.

It is an arithmetic number, because the mean of its divisors is an integer number (17157420).

Almost surely, 287693434 is an apocalyptic number.

87693434 is a deficient number, since it is larger than the sum of its proper divisors (49565926).

87693434 is a wasteful number, since it uses less digits than its factorization.

87693434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1906404.

The product of its digits is 435456, while the sum is 44.

The square root of 87693434 is about 9364.4772411491. The cubic root of 87693434 is about 444.2789045212.

The spelling of 87693434 in words is "eighty-seven million, six hundred ninety-three thousand, four hundred thirty-four".

Divisors: 1 2 23 46 1906379 3812758 43846717 87693434