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1210031423412 = 223735940125727
BaseRepresentation
bin10001100110111011011…
…111100011111110110100
311021200022011121012220220
4101212323133203332310
5124311121021022122
62323514124454340
7153264464252310
oct21467337437664
94250264535826
101210031423412
11427198213a69
121766190aa3b0
138a14a957cc6
14427cc90ab40
152172070425c
hex119bb7e3fb4

1210031423412 has 48 divisors (see below), whose sum is σ = 3235738705920. Its totient is φ = 344760237792.

The previous prime is 1210031423411. The next prime is 1210031423417. The reversal of 1210031423412 is 2143241300121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1210031423411) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20032708 + ... + 20093019.

It is an arithmetic number, because the mean of its divisors is an integer number (67411223040).

Almost surely, 21210031423412 is an apocalyptic number.

1210031423412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1210031423412 is an abundant number, since it is smaller than the sum of its proper divisors (2025707282508).

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

1210031423412 is a wasteful number, since it uses less digits than its factorization.

1210031423412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40126100 (or 40126098 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 1210031423412 its reverse (2143241300121), we get a palindrome (3353272723533).

The spelling of 1210031423412 in words is "one trillion, two hundred ten billion, thirty-one million, four hundred twenty-three thousand, four hundred twelve".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 84 359 718 1077 1436 2154 2513 4308 5026 7539 10052 15078 30156 40125727 80251454 120377181 160502908 240754362 280880089 481508724 561760178 842640267 1123520356 1685280534 3370561068 14405135993 28810271986 43215407979 57620543972 86430815958 100835951951 172861631916 201671903902 302507855853 403343807804 605015711706 1210031423412