Search a number
-
+
3889631904 = 253212919031
BaseRepresentation
bin1110011111010111…
…0001001010100000
3101001002000202212220
43213311301022200
530431221210104
61441544151040
7165250216464
oct34765611240
911032022786
103889631904
111716661024
12906768480
1349caba952
1428c8244a4
1517b7237d9
hexe7d712a0

3889631904 has 48 divisors (see below), whose sum is σ = 10215616320. Its totient is φ = 1295866880.

The previous prime is 3889631897. The next prime is 3889631927. The reversal of 3889631904 is 4091369883.

3889631904 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×38896319042 = 30258472697229330432, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 194869 + ... + 213899.

It is an arithmetic number, because the mean of its divisors is an integer number (212825340).

Almost surely, 23889631904 is an apocalyptic number.

It is an amenable number.

3889631904 is an abundant number, since it is smaller than the sum of its proper divisors (6325984416).

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

3889631904 is a wasteful number, since it uses less digits than its factorization.

3889631904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21173 (or 21165 counting only the distinct ones).

The product of its (nonzero) digits is 1119744, while the sum is 51.

The square root of 3889631904 is about 62366.9135359447. The cubic root of 3889631904 is about 1572.6648056683.

The spelling of 3889631904 in words is "three billion, eight hundred eighty-nine million, six hundred thirty-one thousand, nine hundred four".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 96 2129 4258 6387 8516 12774 17032 19031 25548 34064 38062 51096 57093 68128 76124 102192 114186 152248 204384 228372 304496 456744 608992 913488 1826976 40516999 81033998 121550997 162067996 243101994 324135992 486203988 648271984 972407976 1296543968 1944815952 3889631904