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1214130540 = 223574170507
BaseRepresentation
bin100100001011110…
…0010100101101100
310010121121012222210
41020113202211230
54441304134130
6320251010420
742041640120
oct11027424554
93117535883
101214130540
11573388277
1229a739a10
1316470114c
14b736b580
15718cc5b0
hex485e296c

1214130540 has 96 divisors (see below), whose sum is σ = 3980035584. Its totient is φ = 270743040.

The previous prime is 1214130527. The next prime is 1214130551. The reversal of 1214130540 is 450314121.

It is a super-2 number, since 2×12141305402 = 2948225936321383200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18034 + ... + 52473.

It is an arithmetic number, because the mean of its divisors is an integer number (41458704).

Almost surely, 21214130540 is an apocalyptic number.

1214130540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1214130540 is an abundant number, since it is smaller than the sum of its proper divisors (2765905044).

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

1214130540 is a wasteful number, since it uses less digits than its factorization.

1214130540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70567 (or 70565 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 1214130540 is about 34844.3760167979. The cubic root of 1214130540 is about 1066.8133975665.

Adding to 1214130540 its reverse (450314121), we get a palindrome (1664444661).

The spelling of 1214130540 in words is "one billion, two hundred fourteen million, one hundred thirty thousand, five hundred forty".

Divisors: 1 2 3 4 5 6 7 10 12 14 15 20 21 28 30 35 41 42 60 70 82 84 105 123 140 164 205 210 246 287 410 420 492 574 615 820 861 1148 1230 1435 1722 2460 2870 3444 4305 5740 8610 17220 70507 141014 211521 282028 352535 423042 493549 705070 846084 987098 1057605 1410140 1480647 1974196 2115210 2467745 2890787 2961294 4230420 4935490 5781574 5922588 7403235 8672361 9870980 11563148 14453935 14806470 17344722 20235509 28907870 29612940 34689444 40471018 43361805 57815740 60706527 80942036 86723610 101177545 121413054 173447220 202355090 242826108 303532635 404710180 607065270 1214130540