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87388530038 = 22310731157089
BaseRepresentation
bin101000101100011000…
…0110010010101110110
322100120020221021210122
41101120300302111312
52412432430430123
6104051251251542
76212366151335
oct1213060622566
9270506837718
1087388530038
1134074602057
1214b2a2a9bb2
138318a94694
144330151d1c
152416e82bc8
hex1458c32576

87388530038 has 32 divisors (see below), whose sum is σ = 138506734080. Its totient is φ = 41270056960.

The previous prime is 87388529989. The next prime is 87388530059. The reversal of 87388530038 is 83003588378.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 1502198 + ... + 1559286.

It is an arithmetic number, because the mean of its divisors is an integer number (4328335440).

Almost surely, 287388530038 is an apocalyptic number.

87388530038 is a deficient number, since it is larger than the sum of its proper divisors (51118204042).

87388530038 is a wasteful number, since it uses less digits than its factorization.

87388530038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57532.

The product of its (nonzero) digits is 3870720, while the sum is 53.

The spelling of 87388530038 in words is "eighty-seven billion, three hundred eighty-eight million, five hundred thirty thousand, thirty-eight".

Divisors: 1 2 23 46 107 214 311 622 2461 4922 7153 14306 33277 57089 66554 114178 765371 1313047 1530742 2626094 6108523 12217046 17754679 35509358 140496029 280992058 408357617 816715234 1899750653 3799501306 43694265019 87388530038