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87743434 = 2103425939
BaseRepresentation
bin1010011101011…
…01101111001010
320010002211100211
411032231233022
5134430242214
612412351334
72113543522
oct516555712
9203084324
1087743434
114558aa39
122547554a
1315241abc
14b920682
157a830c4
hex53adbca

87743434 has 8 divisors (see below), whose sum is σ = 132893280. Its totient is φ = 43445676.

The previous prime is 87743429. The next prime is 87743441. The reversal of 87743434 is 43434778.

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

It is a super-4 number, since 4×877434344 (a number of 33 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 212764 + ... + 213175.

It is an arithmetic number, because the mean of its divisors is an integer number (16611660).

Almost surely, 287743434 is an apocalyptic number.

87743434 is a deficient number, since it is larger than the sum of its proper divisors (45149846).

87743434 is a wasteful number, since it uses less digits than its factorization.

87743434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 426044.

The product of its digits is 225792, while the sum is 40.

The square root of 87743434 is about 9367.1465238887. The cubic root of 87743434 is about 444.3633263669.

The spelling of 87743434 in words is "eighty-seven million, seven hundred forty-three thousand, four hundred thirty-four".

Divisors: 1 2 103 206 425939 851878 43871717 87743434