Search a number
-
+
3872408943 = 3131912741149
BaseRepresentation
bin1110011011010000…
…0100010101101111
3100222212121202102110
43212310010111233
530412314041233
61440131055103
7164650634664
oct34664042557
910885552373
103872408943
111707968177
12900a41493
1349936a550
1428a41da6b
15179e70663
hexe6d0456f

3872408943 has 32 divisors (see below), whose sum is σ = 5899264000. Its totient is φ = 2239767936.

The previous prime is 3872408933. The next prime is 3872408963. The reversal of 3872408943 is 3498042783.

It is not a de Polignac number, because 3872408943 - 26 = 3872408879 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3872408892 and 3872408901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3872408933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 73533 + ... + 114681.

It is an arithmetic number, because the mean of its divisors is an integer number (184352000).

Almost surely, 23872408943 is an apocalyptic number.

3872408943 is a deficient number, since it is larger than the sum of its proper divisors (2026855057).

3872408943 is a wasteful number, since it uses less digits than its factorization.

3872408943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41311.

The product of its (nonzero) digits is 1161216, while the sum is 48.

The square root of 3872408943 is about 62228.6826391175. The cubic root of 3872408943 is about 1570.3401622736.

The spelling of 3872408943 in words is "three billion, eight hundred seventy-two million, four hundred eight thousand, nine hundred forty-three".

Divisors: 1 3 13 19 39 57 127 247 381 741 1651 2413 4953 7239 31369 41149 94107 123447 534937 781831 1604811 2345493 5225923 10163803 15677769 30491409 67936999 99292537 203810997 297877611 1290802981 3872408943