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1800068420152 = 231719553676919
BaseRepresentation
bin11010001100011100011…
…100000101001000111000
320101002021212022021021101
4122030130130011020320
5213443020003421102
63454535013221144
7244023242054512
oct32143434051070
96332255267241
101800068420152
1163444a771772
12250a473317b4
1310099047c8c2
14631a38dcbb2
1531c55a70e87
hex1a31c705238

1800068420152 has 32 divisors (see below), whose sum is σ = 3573853293600. Its totient is φ = 847046447104.

The previous prime is 1800068420123. The next prime is 1800068420159. The reversal of 1800068420152 is 2510248600081.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1800068420159) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 2320749 + ... + 2997667.

It is an arithmetic number, because the mean of its divisors is an integer number (111682915425).

Almost surely, 21800068420152 is an apocalyptic number.

It is an amenable number.

1800068420152 is a deficient number, since it is larger than the sum of its proper divisors (1773784873448).

1800068420152 is a wasteful number, since it uses less digits than its factorization.

1800068420152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 696495 (or 696491 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 37.

The spelling of 1800068420152 in words is "one trillion, eight hundred billion, sixty-eight million, four hundred twenty thousand, one hundred fifty-two".

Divisors: 1 2 4 8 17 34 68 136 19553 39106 78212 156424 332401 664802 676919 1329604 1353838 2659208 2707676 5415352 11507623 23015246 46030492 92060984 13235797207 26471594414 52943188828 105886377656 225008552519 450017105038 900034210076 1800068420152