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1214468920 = 235722572411
BaseRepresentation
bin100100001100011…
…0101001100111000
310010122020102011101
41020120311030320
54441401001140
6320302141144
742044546500
oct11030651470
93118212141
101214468920
11573599525
1229a8817b4
131647bc182
14b7418a00
157194799a
hex48635338

1214468920 has 96 divisors (see below), whose sum is σ = 3192378480. Its totient is φ = 414597120.

The previous prime is 1214468917. The next prime is 1214468963. The reversal of 1214468920 is 298644121.

It is a self number, because there is not a number n which added to its sum of digits gives 1214468920.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 502515 + ... + 504925.

Almost surely, 21214468920 is an apocalyptic number.

1214468920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1214468920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1596189240).

1214468920 is an abundant number, since it is smaller than the sum of its proper divisors (1977909560).

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

1214468920 is a wasteful number, since it uses less digits than its factorization.

1214468920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2693 (or 2682 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 37.

The square root of 1214468920 is about 34849.2312684226. The cubic root of 1214468920 is about 1066.9124958580.

The spelling of 1214468920 in words is "one billion, two hundred fourteen million, four hundred sixty-eight thousand, nine hundred twenty".

Divisors: 1 2 4 5 7 8 10 14 20 28 35 40 49 56 70 98 140 196 245 257 280 392 490 514 980 1028 1285 1799 1960 2056 2411 2570 3598 4822 5140 7196 8995 9644 10280 12055 12593 14392 16877 17990 19288 24110 25186 33754 35980 48220 50372 62965 67508 71960 84385 96440 100744 118139 125930 135016 168770 236278 251860 337540 472556 503720 590695 619627 675080 945112 1181390 1239254 2362780 2478508 3098135 4337389 4725560 4957016 6196270 8674778 12392540 17349556 21686945 24785080 30361723 34699112 43373890 60723446 86747780 121446892 151808615 173495560 242893784 303617230 607234460 1214468920