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8725245870 = 2351124675147
BaseRepresentation
bin10000010000001000…
…01010111110101110
3211112002002102012110
420020010022332232
5120332130331440
64001444144450
7426135236415
oct101004127656
924462072173
108725245870
1137781a0400
121836098126
13a908815a3
145cab3447c
15361008080
hex20810afae

8725245870 has 96 divisors (see below), whose sum is σ = 23071112064. Its totient is φ = 2110271680.

The previous prime is 8725245829. The next prime is 8725245871. The reversal of 8725245870 is 785425278.

It is a super-2 number, since 2×87252458702 (a number of 21 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8725245871) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1692637 + ... + 1697783.

It is an arithmetic number, because the mean of its divisors is an integer number (240324084).

Almost surely, 28725245870 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8725245870, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11535556032).

8725245870 is an abundant number, since it is smaller than the sum of its proper divisors (14345866194).

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

8725245870 is a wasteful number, since it uses less digits than its factorization.

8725245870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5646 (or 5635 counting only the distinct ones).

The product of its (nonzero) digits is 1254400, while the sum is 48.

The square root of 8725245870 is about 93409.0245640109. The cubic root of 8725245870 is about 2058.6975986890.

The spelling of 8725245870 in words is "eight billion, seven hundred twenty-five million, two hundred forty-five thousand, eight hundred seventy".

Divisors: 1 2 3 5 6 10 11 15 22 30 33 55 66 110 121 165 242 330 363 467 605 726 934 1210 1401 1815 2335 2802 3630 4670 5137 5147 7005 10274 10294 14010 15411 15441 25685 25735 30822 30882 51370 51470 56507 56617 77055 77205 113014 113234 154110 154410 169521 169851 282535 283085 339042 339702 565070 566170 622787 847605 849255 1245574 1695210 1698510 1868361 2403649 3113935 3736722 4807298 6227870 7210947 9341805 12018245 14421894 18683610 24036490 26440139 36054735 52880278 72109470 79320417 132200695 158640834 264401390 290841529 396602085 581683058 793204170 872524587 1454207645 1745049174 2908415290 4362622935 8725245870