Search a number
-
+
1048638624 = 253115916831
BaseRepresentation
bin111110100000001…
…111010010100000
32201002012100202120
4332200033102200
54121422413444
6252015544240
734662165315
oct7640172240
92632170676
101048638624
11498a247a0
1225322b080
13139339a37
149d3acd0c
15620dcb19
hex3e80f4a0

1048638624 has 96 divisors (see below), whose sum is σ = 3053998080. Its totient is φ = 312364800.

The previous prime is 1048638611. The next prime is 1048638629. The reversal of 1048638624 is 4268368401.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×10486386242 = 2199285927489226752, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1048638629) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 53889 + ... + 70719.

It is an arithmetic number, because the mean of its divisors is an integer number (31812480).

Almost surely, 21048638624 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1048638624, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1526999040).

1048638624 is an abundant number, since it is smaller than the sum of its proper divisors (2005359456).

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

1048638624 is a wasteful number, since it uses less digits than its factorization.

1048638624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16914 (or 16906 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 42.

The square root of 1048638624 is about 32382.6901909029. The cubic root of 1048638624 is about 1015.9568977519.

The spelling of 1048638624 in words is "one billion, forty-eight million, six hundred thirty-eight thousand, six hundred twenty-four".

Divisors: 1 2 3 4 6 8 11 12 16 22 24 32 33 44 48 59 66 88 96 118 132 176 177 236 264 352 354 472 528 649 708 944 1056 1298 1416 1888 1947 2596 2832 3894 5192 5664 7788 10384 15576 16831 20768 31152 33662 50493 62304 67324 100986 134648 185141 201972 269296 370282 403944 538592 555423 740564 807888 993029 1110846 1481128 1615776 1986058 2221692 2962256 2979087 3972116 4443384 5924512 5958174 7944232 8886768 10923319 11916348 15888464 17773536 21846638 23832696 31776928 32769957 43693276 47665392 65539914 87386552 95330784 131079828 174773104 262159656 349546208 524319312 1048638624