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87429193 = 1391933259
BaseRepresentation
bin1010011011000…
…01000001001001
320002111212022021
411031201001021
5134340213233
612401524441
72111064415
oct515410111
9202455267
1087429193
1145395935
1225343721
1315161a67
14b87bd45
157a1ee2d
hex5361049

87429193 has 8 divisors (see below), whose sum is σ = 88541600. Its totient is φ = 86323968.

The previous prime is 87429169. The next prime is 87429211. The reversal of 87429193 is 39192478.

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

It is a cyclic number.

It is not a de Polignac number, because 87429193 - 25 = 87429161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87429163) 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, 25198 + ... + 28456.

It is an arithmetic number, because the mean of its divisors is an integer number (11067700).

Almost surely, 287429193 is an apocalyptic number.

It is an amenable number.

87429193 is a deficient number, since it is larger than the sum of its proper divisors (1112407).

87429193 is a wasteful number, since it uses less digits than its factorization.

87429193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3591.

The product of its digits is 108864, while the sum is 43.

The square root of 87429193 is about 9350.3579075884. The cubic root of 87429193 is about 443.8322165192.

The spelling of 87429193 in words is "eighty-seven million, four hundred twenty-nine thousand, one hundred ninety-three".

Divisors: 1 139 193 3259 26827 453001 628987 87429193