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12885603124 = 2213001247781
BaseRepresentation
bin11000000000000101…
…01011001100110100
31020021000112110110011
430000002223030310
5202342203244444
65530343110004
7634213551022
oct140002531464
936230473404
1012885603124
115512650389
1225b7442304
1312a478a244
148a34ab712
155063a6734
hex3000ab334

12885603124 has 12 divisors (see below), whose sum is σ = 22551630948. Its totient is φ = 6442280000.

The previous prime is 12885603077. The next prime is 12885603139. The reversal of 12885603124 is 42130658821.

It can be written as a sum of positive squares in 2 ways, for example, as 2768864400 + 10116738724 = 52620^2 + 100582^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71887 + ... + 175894.

It is an arithmetic number, because the mean of its divisors is an integer number (1879302579).

Almost surely, 212885603124 is an apocalyptic number.

It is an amenable number.

12885603124 is a deficient number, since it is larger than the sum of its proper divisors (9666027824).

12885603124 is a wasteful number, since it uses less digits than its factorization.

12885603124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260786 (or 260784 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 40.

The spelling of 12885603124 in words is "twelve billion, eight hundred eighty-five million, six hundred three thousand, one hundred twenty-four".

Divisors: 1 2 4 13001 26002 52004 247781 495562 991124 3221400781 6442801562 12885603124