Search a number
-
+
7452868900 = 2252892972
BaseRepresentation
bin1101111000011100…
…11100000100100100
3201020101212222010111
412330032130010210
5110230413301100
63231312502404
7352455224521
oct67416340444
921211788114
107452868900
113184a4a794
12153bb4aa04
1391a0986c9
14509b64148
152d94726ba
hex1bc39c124

7452868900 has 81 divisors (see below), whose sum is σ = 16526845209. Its totient is φ = 2917263360.

The previous prime is 7452868877. The next prime is 7452868903. The reversal of 7452868900 is 98682547.

The square root of 7452868900 is 86330.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 13 ways, for example, as 6957895396 + 494973504 = 83414^2 + 22248^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7452868903) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 76833652 + ... + 76833748.

Almost surely, 27452868900 is an apocalyptic number.

7452868900 is the 86330-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7452868900

7452868900 is an abundant number, since it is smaller than the sum of its proper divisors (9073976309).

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

7452868900 is an equidigital number, since it uses as much as digits as its factorization.

7452868900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 386 (or 193 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 49.

The cubic root of 7452868900 is about 1953.3249345066.

Multiplying 7452868900 by its sum of digits (49), we get a square (365190576100 = 6043102).

The spelling of 7452868900 in words is "seven billion, four hundred fifty-two million, eight hundred sixty-eight thousand, nine hundred".

Divisors: 1 2 4 5 10 20 25 50 89 97 100 178 194 356 388 445 485 890 970 1780 1940 2225 2425 4450 4850 7921 8633 8900 9409 9700 15842 17266 18818 31684 34532 37636 39605 43165 47045 79210 86330 94090 158420 172660 188180 198025 215825 235225 396050 431650 470450 768337 792100 837401 863300 940900 1536674 1674802 3073348 3349604 3841685 4187005 7683370 8374010 15366740 16748020 19208425 20935025 38416850 41870050 74528689 76833700 83740100 149057378 298114756 372643445 745286890 1490573780 1863217225 3726434450 7452868900