Search a number
-
+
1008256980 = 2235231375333
BaseRepresentation
bin111100000110001…
…100011111010100
32121021012202120010
4330012030133110
54031103210410
6244014240220
733662020503
oct7406143724
92537182503
101008256980
11478153435
122417b6070
13130b6b583
1497c9a83a
155d7b2c20
hex3c18c7d4

1008256980 has 96 divisors (see below), whose sum is σ = 2967922944. Its totient is φ = 255253504.

The previous prime is 1008256973. The next prime is 1008256987. The reversal of 1008256980 is 896528001.

1008256980 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (1008256973) and next prime (1008256987).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1008256987) 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, 186394 + ... + 191726.

It is an arithmetic number, because the mean of its divisors is an integer number (30915864).

Almost surely, 21008256980 is an apocalyptic number.

1008256980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1008256980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1483961472).

1008256980 is an abundant number, since it is smaller than the sum of its proper divisors (1959665964).

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

1008256980 is a wasteful number, since it uses less digits than its factorization.

1008256980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5505 (or 5503 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 39.

The square root of 1008256980 is about 31753.0625294632. The cubic root of 1008256980 is about 1002.7447859240.

The spelling of 1008256980 in words is "one billion, eight million, two hundred fifty-six thousand, nine hundred eighty".

Divisors: 1 2 3 4 5 6 10 12 15 20 23 30 46 60 69 92 115 137 138 230 274 276 345 411 460 548 685 690 822 1370 1380 1644 2055 2740 3151 4110 5333 6302 8220 9453 10666 12604 15755 15999 18906 21332 26665 31510 31998 37812 47265 53330 63020 63996 79995 94530 106660 122659 159990 189060 245318 319980 367977 490636 613295 730621 735954 1226590 1461242 1471908 1839885 2191863 2453180 2922484 3653105 3679770 4383726 7306210 7359540 8767452 10959315 14612420 16804283 21918630 33608566 43837260 50412849 67217132 84021415 100825698 168042830 201651396 252064245 336085660 504128490 1008256980