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1028471496 = 2331323251571
BaseRepresentation
bin111101010011010…
…011101011001000
32122200020202122220
4331103103223020
54101242041441
6250015414040
734325602113
oct7523235310
92580222586
101028471496
114885aa948
12248524320
131350c8520
149a83d57a
1560457466
hex3d4d3ac8

1028471496 has 128 divisors (see below), whose sum is σ = 2905943040. Its totient is φ = 300960000.

The previous prime is 1028471489. The next prime is 1028471497. The reversal of 1028471496 is 6941748201.

It is not an unprimeable number, because it can be changed into a prime (1028471497) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1800891 + ... + 1801461.

It is an arithmetic number, because the mean of its divisors is an integer number (22702680).

Almost surely, 21028471496 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 1028471496, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1452971520).

1028471496 is an abundant number, since it is smaller than the sum of its proper divisors (1877471544).

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

1028471496 is a wasteful number, since it uses less digits than its factorization.

1028471496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 867 (or 863 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 42.

The square root of 1028471496 is about 32069.7910189636. The cubic root of 1028471496 is about 1009.4018272875.

The spelling of 1028471496 in words is "one billion, twenty-eight million, four hundred seventy-one thousand, four hundred ninety-six".

Divisors: 1 2 3 4 6 8 12 13 23 24 26 39 46 52 69 78 92 104 138 156 184 251 276 299 312 502 552 571 598 753 897 1004 1142 1196 1506 1713 1794 2008 2284 2392 3012 3263 3426 3588 4568 5773 6024 6526 6852 7176 7423 9789 11546 13052 13133 13704 14846 17319 19578 22269 23092 26104 26266 29692 34638 39156 39399 44538 46184 52532 59384 69276 75049 78312 78798 89076 105064 138552 143321 150098 157596 170729 178152 225147 286642 300196 315192 341458 429963 450294 512187 573284 600392 682916 859926 900588 1024374 1146568 1365832 1719852 1801176 1863173 2048748 3296383 3439704 3726346 4097496 5589519 6592766 7452692 9889149 11179038 13185532 14905384 19778298 22358076 26371064 39556596 42852979 44716152 79113192 85705958 128558937 171411916 257117874 342823832 514235748 1028471496