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4243123140 = 2235312281249
BaseRepresentation
bin1111110011101000…
…1110101111000100
3101221201011222200220
43330322032233010
532142214420030
61541012504340
7210101644254
oct37472165704
911851158626
104243123140
111888150243
129a501b0b0
135280c6c69
142c375d964
1519c79ba10
hexfce8ebc4

4243123140 has 48 divisors (see below), whose sum is σ = 12264000000. Its totient is φ = 1094999040.

The previous prime is 4243123127. The next prime is 4243123153. The reversal of 4243123140 is 413213424.

It is an interprime number because it is at equal distance from previous prime (4243123127) and next prime (4243123153).

It is a self number, because there is not a number n which added to its sum of digits gives 4243123140.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1138765 + ... + 1142484.

It is an arithmetic number, because the mean of its divisors is an integer number (255500000).

Almost surely, 24243123140 is an apocalyptic number.

It is an amenable number.

4243123140 is an abundant number, since it is smaller than the sum of its proper divisors (8020876860).

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

4243123140 is a wasteful number, since it uses less digits than its factorization.

4243123140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2281292 (or 2281290 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 4243123140 is about 65139.2595905112. The cubic root of 4243123140 is about 1618.9317679441.

Adding to 4243123140 its reverse (413213424), we get a palindrome (4656336564).

The spelling of 4243123140 in words is "four billion, two hundred forty-three million, one hundred twenty-three thousand, one hundred forty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 31 60 62 93 124 155 186 310 372 465 620 930 1860 2281249 4562498 6843747 9124996 11406245 13687494 22812490 27374988 34218735 45624980 68437470 70718719 136874940 141437438 212156157 282874876 353593595 424312314 707187190 848624628 1060780785 1414374380 2121561570 4243123140