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87377027938 = 2127541635867
BaseRepresentation
bin101000101100000010…
…0111010001101100010
322100112110021220212221
41101120010322031202
52412422004343223
6104050200541254
76212166324454
oct1213004721542
9270473256787
1087377027938
1134069066392
1214b2648182a
1383165981c5
14432c7da2d4
152415e5eb5d
hex145813a362

87377027938 has 16 divisors (see below), whose sum is σ = 132341935104. Its totient is φ = 43264322640.

The previous prime is 87377027929. The next prime is 87377027939. The reversal of 87377027938 is 83972077378.

It is a super-2 number, since 2×873770279382 (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (87377027939) 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, 180520 + ... + 455347.

It is an arithmetic number, because the mean of its divisors is an integer number (8271370944).

Almost surely, 287377027938 is an apocalyptic number.

87377027938 is a deficient number, since it is larger than the sum of its proper divisors (44964907166).

87377027938 is a wasteful number, since it uses less digits than its factorization.

87377027938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 636537.

The product of its (nonzero) digits is 24893568, while the sum is 61.

The spelling of 87377027938 in words is "eighty-seven billion, three hundred seventy-seven million, twenty-seven thousand, nine hundred thirty-eight".

Divisors: 1 2 127 254 541 1082 68707 137414 635867 1271734 80755109 161510218 344004047 688008094 43688513969 87377027938