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87272043 = 329090681
BaseRepresentation
bin1010011001110…
…10101001101011
320002012212201220
411030322221223
5134320201133
612354313123
72106541305
oct514725153
9202185656
1087272043
1145298861
12252887a3
1315108381
14b83a975
1579dd5b3
hex533aa6b

87272043 has 4 divisors (see below), whose sum is σ = 116362728. Its totient is φ = 58181360.

The previous prime is 87272041. The next prime is 87272063. The reversal of 87272043 is 34027278.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 87272043 - 21 = 87272041 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 87271995 and 87272013.

It is not an unprimeable number, because it can be changed into a prime (87272041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14545338 + ... + 14545343.

It is an arithmetic number, because the mean of its divisors is an integer number (29090682).

Almost surely, 287272043 is an apocalyptic number.

87272043 is a deficient number, since it is larger than the sum of its proper divisors (29090685).

87272043 is a wasteful number, since it uses less digits than its factorization.

87272043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29090684.

The product of its (nonzero) digits is 18816, while the sum is 33.

The square root of 87272043 is about 9341.9507063568. The cubic root of 87272043 is about 443.5661342875.

The spelling of 87272043 in words is "eighty-seven million, two hundred seventy-two thousand, forty-three".

Divisors: 1 3 29090681 87272043