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87073044 = 2237256087
BaseRepresentation
bin1010011000010…
…10000100010100
320001211202202120
411030022010110
5134242314134
612350135540
72105052162
oct514120424
9201752676
1087073044
11451722a3
12251b15b0
1315068916
14b7c8232
15799e649
hex530a114

87073044 has 12 divisors (see below), whose sum is σ = 203170464. Its totient is φ = 29024344.

The previous prime is 87073043. The next prime is 87073073. The reversal of 87073044 is 44037078.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 87072996 and 87073014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87073043) 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, 3628032 + ... + 3628055.

It is an arithmetic number, because the mean of its divisors is an integer number (16930872).

Almost surely, 287073044 is an apocalyptic number.

It is an amenable number.

87073044 is an abundant number, since it is smaller than the sum of its proper divisors (116097420).

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

87073044 is a wasteful number, since it uses less digits than its factorization.

87073044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7256094 (or 7256092 counting only the distinct ones).

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

The square root of 87073044 is about 9331.2938009689. The cubic root of 87073044 is about 443.2287356959.

The spelling of 87073044 in words is "eighty-seven million, seventy-three thousand, forty-four".

Divisors: 1 2 3 4 6 12 7256087 14512174 21768261 29024348 43536522 87073044