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1212032031030 = 2325193263265313
BaseRepresentation
bin10001101000110010101…
…111010001100100110110
311021212110121002121122100
4101220302233101210312
5124324220144443110
62324444432442530
7153365166164502
oct21506257214466
94255417077570
101212032031030
11428024536097
12176a970a9446
138a3a9285ab2
144293c4c3302
15217db186bc0
hex11a32bd1936

1212032031030 has 96 divisors (see below), whose sum is σ = 3179667306816. Its totient is φ = 320310116352.

The previous prime is 1212032030921. The next prime is 1212032031037. The reversal of 1212032031030 is 301302302121.

1212032031030 is a `hidden beast` number, since 1 + 2 + 1 + 2 + 0 + 320 + 310 + 30 = 666.

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 = 1212032030994 and 1212032031012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212032031037) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4435654 + ... + 4700966.

It is an arithmetic number, because the mean of its divisors is an integer number (33121534446).

Almost surely, 21212032031030 is an apocalyptic number.

1212032031030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1212032031030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1589833653408).

1212032031030 is an abundant number, since it is smaller than the sum of its proper divisors (1967635275786).

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

1212032031030 is a wasteful number, since it uses less digits than its factorization.

1212032031030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265782 (or 265779 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 1212032031030 its reverse (301302302121), we get a palindrome (1513334333151).

The spelling of 1212032031030 in words is "one trillion, two hundred twelve billion, thirty-two million, thirty-one thousand, thirty".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 193 263 386 526 579 789 965 1158 1315 1578 1737 1930 2367 2630 2895 3474 3945 4734 5790 7890 8685 11835 17370 23670 50759 101518 152277 253795 265313 304554 456831 507590 530626 761385 795939 913662 1326565 1522770 1591878 2284155 2387817 2653130 3979695 4568310 4775634 7959390 11939085 23878170 51205409 69777319 102410818 139554638 153616227 209331957 256027045 307232454 348886595 418663914 460848681 512054090 627995871 697773190 768081135 921697362 1046659785 1255991742 1536162270 2093319570 2304243405 3139979355 4608486810 6279958710 13467022567 26934045134 40401067701 67335112835 80802135402 121203203103 134670225670 202005338505 242406406206 404010677010 606016015515 1212032031030