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87423964587742 = 2117156359662339
BaseRepresentation
bin10011111000001011111010…
…010110101010011011011110
3102110112122112101222120012211
4103320023322112222123132
542424323234413301432
6505534003114351034
724262113224662366
oct2370137226523336
9373478471876184
1087423964587742
11259463279652a2
12997b424a2b47a
1339a20769768c3
1417834b1a0b9a6
15a19170879d47
hex4f82fa5aa6de

87423964587742 has 16 divisors (see below), whose sum is σ = 131250460118400. Its totient is φ = 43673812654680.

The previous prime is 87423964587721. The next prime is 87423964587793. The reversal of 87423964587742 is 24778546932478.

It is a super-3 number, since 3×874239645877423 (a number of 43 digits) contains 333 as substring.

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, 131661609 + ... + 132323947.

It is an arithmetic number, because the mean of its divisors is an integer number (8203153757400).

Almost surely, 287423964587742 is an apocalyptic number.

87423964587742 is a deficient number, since it is larger than the sum of its proper divisors (43826495530658).

87423964587742 is a wasteful number, since it uses less digits than its factorization.

87423964587742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 719871.

The product of its digits is 4551966720, while the sum is 76.

The spelling of 87423964587742 in words is "eighty-seven trillion, four hundred twenty-three billion, nine hundred sixty-four million, five hundred eighty-seven thousand, seven hundred forty-two".

Divisors: 1 2 1171 2342 56359 112718 662339 1324678 65996389 131992778 775598969 1551197938 37328763701 74657527402 43711982293871 87423964587742