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87814734 = 2372090827
BaseRepresentation
bin1010011101111…
…11001001001110
320010020110011120
411032333021032
5134440032414
612414101410
72114261430
oct516771116
9203213146
1087814734
1145629567
12254aa866
13152683a7
14b93c650
157a992a9
hex53bf24e

87814734 has 16 divisors (see below), whose sum is σ = 200719488. Its totient is φ = 25089912.

The previous prime is 87814721. The next prime is 87814757. The reversal of 87814734 is 43741878.

It is a super-2 number, since 2×878147342 = 15422855014981512, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42), and also a Moran number because the ratio is a prime number: 2090827 = 87814734 / (8 + 7 + 8 + 1 + 4 + 7 + 3 + 4).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1045372 + ... + 1045455.

It is an arithmetic number, because the mean of its divisors is an integer number (12544968).

Almost surely, 287814734 is an apocalyptic number.

87814734 is an abundant number, since it is smaller than the sum of its proper divisors (112904754).

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

87814734 is a wasteful number, since it uses less digits than its factorization.

87814734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2090839.

The product of its digits is 150528, while the sum is 42.

The square root of 87814734 is about 9370.9516058936. The cubic root of 87814734 is about 444.4836564616.

The spelling of 87814734 in words is "eighty-seven million, eight hundred fourteen thousand, seven hundred thirty-four".

Divisors: 1 2 3 6 7 14 21 42 2090827 4181654 6272481 12544962 14635789 29271578 43907367 87814734