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2031212124 = 2232283199373
BaseRepresentation
bin111100100010001…
…1101011001011100
312020120002021012200
41321010131121130
513124442241444
6533315531500
7101223006144
oct17104353134
95216067180
102031212124
11952625807
124882b9b90
13264a84c86
14153aa1924
15bd4ca969
hex7911d65c

2031212124 has 36 divisors (see below), whose sum is σ = 5152621656. Its totient is φ = 674674848.

The previous prime is 2031212123. The next prime is 2031212129. The reversal of 2031212124 is 4212121302.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 2031212097 and 2031212106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2031212123) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 89499 + ... + 109874.

Almost surely, 22031212124 is an apocalyptic number.

It is an amenable number.

2031212124 is an abundant number, since it is smaller than the sum of its proper divisors (3121409532).

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

2031212124 is a wasteful number, since it uses less digits than its factorization.

2031212124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199666 (or 199661 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 2031212124 is about 45068.9707448484. The cubic root of 2031212124 is about 1266.4413830493.

Adding to 2031212124 its reverse (4212121302), we get a palindrome (6243333426).

The spelling of 2031212124 in words is "two billion, thirty-one million, two hundred twelve thousand, one hundred twenty-four".

Divisors: 1 2 3 4 6 9 12 18 36 283 566 849 1132 1698 2547 3396 5094 10188 199373 398746 598119 797492 1196238 1794357 2392476 3588714 7177428 56422559 112845118 169267677 225690236 338535354 507803031 677070708 1015606062 2031212124