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211387527652 = 227193161324251
BaseRepresentation
bin1100010011011110101…
…1011011000111100100
3202012121221221000201211
43010313223123013210
511430410201341102
6241035440201204
721162244224040
oct3046753330744
9665557830654
10211387527652
1181715826284
1234b75309204
1316c1a60c112
14a33462b020
1557730617d7
hex3137adb1e4

211387527652 has 48 divisors (see below), whose sum is σ = 425246596992. Its totient is φ = 90065664000.

The previous prime is 211387527649. The next prime is 211387527653. The reversal of 211387527652 is 256725783112.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 211387527596 and 211387527605.

It is not an unprimeable number, because it can be changed into a prime (211387527653) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8704527 + ... + 8728777.

It is an arithmetic number, because the mean of its divisors is an integer number (8859304104).

Almost surely, 2211387527652 is an apocalyptic number.

It is an amenable number.

211387527652 is an abundant number, since it is smaller than the sum of its proper divisors (213859069340).

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

211387527652 is a wasteful number, since it uses less digits than its factorization.

211387527652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26068 (or 26066 counting only the distinct ones).

The product of its digits is 1411200, while the sum is 49.

The spelling of 211387527652 in words is "two hundred eleven billion, three hundred eighty-seven million, five hundred twenty-seven thousand, six hundred fifty-two".

Divisors: 1 2 4 7 14 28 193 386 772 1351 1613 2702 3226 5404 6452 11291 22582 24251 45164 48502 97004 169757 311309 339514 622618 679028 1245236 2179163 4358326 4680443 8716652 9360886 18721772 32763101 39116863 65526202 78233726 131052404 156467452 273818041 547636082 1095272164 7549554559 15099109118 30198218236 52846881913 105693763826 211387527652