Search a number
-
+
100470902820 = 22357926978797
BaseRepresentation
bin101110110010010001…
…0000101000000100100
3100121022222201200110220
41131210202011000210
53121231022342240
6114053344044340
710154522404011
oct1354442050044
9317288650426
10100470902820
1139678229392
121757b6036b0
139622247772
144c11800708
1529307565d0
hex1764885024

100470902820 has 96 divisors (see below), whose sum is σ = 285942182400. Its totient is φ = 26354425344.

The previous prime is 100470902803. The next prime is 100470902849. The reversal of 100470902820 is 28209074001.

It is a happy number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 1235662 + ... + 1314458.

It is an arithmetic number, because the mean of its divisors is an integer number (2978564400).

Almost surely, 2100470902820 is an apocalyptic number.

100470902820 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 100470902820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (142971091200).

100470902820 is an abundant number, since it is smaller than the sum of its proper divisors (185471279580).

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

100470902820 is a wasteful number, since it uses less digits than its factorization.

100470902820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79157 (or 79155 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 33.

Adding to 100470902820 its reverse (28209074001), we get a palindrome (128679976821).

The spelling of 100470902820 in words is "one hundred billion, four hundred seventy million, nine hundred two thousand, eight hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 79 158 237 269 316 395 474 538 790 807 948 1076 1185 1345 1580 1614 2370 2690 3228 4035 4740 5380 8070 16140 21251 42502 63753 78797 85004 106255 127506 157594 212510 236391 255012 315188 318765 393985 425020 472782 637530 787970 945564 1181955 1275060 1575940 2363910 4727820 6224963 12449926 18674889 21196393 24899852 31124815 37349778 42392786 62249630 63589179 74699556 84785572 93374445 105981965 124499260 127178358 186748890 211963930 254356716 317945895 373497780 423927860 635891790 1271783580 1674515047 3349030094 5023545141 6698060188 8372575235 10047090282 16745150470 20094180564 25117725705 33490300940 50235451410 100470902820