Search a number
-
+
5297312500 = 2256131647
BaseRepresentation
bin1001110111011111…
…01001001011110100
3111200011211100122021
410323233221023310
541322103000000
62233351442524
7245162261524
oct47357511364
914604740567
105297312500
112279216317
12103a086444
1366562834c
14383775684
152100d411a
hex13bbe92f4

5297312500 has 84 divisors (see below), whose sum is σ = 11694225312. Its totient is φ = 2099500000.

The previous prime is 5297312491. The next prime is 5297312509. The reversal of 5297312500 is 52137925.

It is an interprime number because it is at equal distance from previous prime (5297312491) and next prime (5297312509).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5297312509) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 8187177 + ... + 8187823.

It is an arithmetic number, because the mean of its divisors is an integer number (139216968).

Almost surely, 25297312500 is an apocalyptic number.

5297312500 is a gapful number since it is divisible by the number (50) 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 5297312500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5847112656).

5297312500 is an abundant number, since it is smaller than the sum of its proper divisors (6396912812).

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

5297312500 is an equidigital number, since it uses as much as digits as its factorization.

5297312500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 812 (or 785 counting only the distinct ones).

The product of its (nonzero) digits is 18900, while the sum is 34.

The square root of 5297312500 is about 72782.6387265535. The cubic root of 5297312500 is about 1743.2186538130.

The spelling of 5297312500 in words is "five billion, two hundred ninety-seven million, three hundred twelve thousand, five hundred".

Divisors: 1 2 4 5 10 20 25 50 100 125 131 250 262 500 524 625 647 655 1250 1294 1310 2500 2588 2620 3125 3235 3275 6250 6470 6550 12500 12940 13100 15625 16175 16375 31250 32350 32750 62500 64700 65500 80875 81875 84757 161750 163750 169514 323500 327500 339028 404375 409375 423785 808750 818750 847570 1617500 1637500 1695140 2021875 2046875 2118925 4043750 4093750 4237850 8087500 8187500 8475700 10109375 10594625 20218750 21189250 40437500 42378500 52973125 105946250 211892500 264865625 529731250 1059462500 1324328125 2648656250 5297312500