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87437401055412 = 22323625750631641
BaseRepresentation
bin10011111000011000011011…
…001110101110000010110100
3102110120221012211001211202120
4103320120123032232002310
542430033244132233122
6505544104300435540
724263100211035462
oct2370303316560264
9373527184054676
1087437401055412
1125950aa2453331
129981b54848bb0
1339a34085b79a5
141783dc8311832
15a196aa29575c
hex4f861b3ae0b4

87437401055412 has 48 divisors (see below), whose sum is σ = 212925092107392. Its totient is φ = 27874135505920.

The previous prime is 87437401055371. The next prime is 87437401055413. The reversal of 87437401055412 is 21455010473478.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87437401055413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23588889 + ... + 27042752.

It is an arithmetic number, because the mean of its divisors is an integer number (4435939418904).

Almost surely, 287437401055412 is an apocalyptic number.

It is an amenable number.

87437401055412 is an abundant number, since it is smaller than the sum of its proper divisors (125487691051980).

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

87437401055412 is a wasteful number, since it uses less digits than its factorization.

87437401055412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50637928 (or 50637926 counting only the distinct ones).

The product of its (nonzero) digits is 3763200, while the sum is 51.

The spelling of 87437401055412 in words is "eighty-seven trillion, four hundred thirty-seven billion, four hundred one million, fifty-five thousand, four hundred twelve".

Divisors: 1 2 3 4 6 12 23 46 69 92 138 276 6257 12514 18771 25028 37542 75084 143911 287822 431733 575644 863466 1726932 50631641 101263282 151894923 202526564 303789846 607579692 1164527743 2329055486 3493583229 4658110972 6987166458 13974332916 316802177737 633604355474 950406533211 1267208710948 1900813066422 3801626132844 7286450087951 14572900175902 21859350263853 29145800351804 43718700527706 87437401055412