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87346231 = 729430277
BaseRepresentation
bin1010011010011…
…00110000110111
320002100122111121
411031030300313
5134330034411
612400044411
72110300510
oct515146067
9202318447
1087346231
1145339575
1225303707
131513307b
14b859a07
157a05571
hex534cc37

87346231 has 8 divisors (see below), whose sum is σ = 103266720. Its totient is φ = 72286368.

The previous prime is 87346219. The next prime is 87346241. The reversal of 87346231 is 13264378.

It is a happy number.

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

It is not a de Polignac number, because 87346231 - 211 = 87344183 is a prime.

It is a super-4 number, since 4×873462314 (a number of 33 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87346241) 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, 214936 + ... + 215341.

It is an arithmetic number, because the mean of its divisors is an integer number (12908340).

Almost surely, 287346231 is an apocalyptic number.

87346231 is a deficient number, since it is larger than the sum of its proper divisors (15920489).

87346231 is a wasteful number, since it uses less digits than its factorization.

87346231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 430313.

The product of its digits is 24192, while the sum is 34.

The square root of 87346231 is about 9345.9205539101. The cubic root of 87346231 is about 443.6917872193.

The spelling of 87346231 in words is "eighty-seven million, three hundred forty-six thousand, two hundred thirty-one".

Divisors: 1 7 29 203 430277 3011939 12478033 87346231