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87938746 = 276281339
BaseRepresentation
bin1010011110111…
…01011010111010
320010110202021121
411033131122322
5140003014441
612420455454
72115316120
oct517353272
9203422247
1087938746
1145703755
122554a58a
13152ac97c
14b971910
157ac0dd1
hex53dd6ba

87938746 has 8 divisors (see below), whose sum is σ = 150752160. Its totient is φ = 37688028.

The previous prime is 87938657. The next prime is 87938791. The reversal of 87938746 is 64783978.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 87938693 and 87938702.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3140656 + ... + 3140683.

It is an arithmetic number, because the mean of its divisors is an integer number (18844020).

Almost surely, 287938746 is an apocalyptic number.

87938746 is a deficient number, since it is larger than the sum of its proper divisors (62813414).

87938746 is a wasteful number, since it uses less digits than its factorization.

87938746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6281348.

The product of its digits is 2032128, while the sum is 52.

The square root of 87938746 is about 9377.5661021397. The cubic root of 87938746 is about 444.6927913740.

The spelling of 87938746 in words is "eighty-seven million, nine hundred thirty-eight thousand, seven hundred forty-six".

Divisors: 1 2 7 14 6281339 12562678 43969373 87938746