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10711215025 = 527229572
BaseRepresentation
bin10011111100111000…
…00010101110110001
31000122111001002201121
421332130002232301
5133414032340100
64530510302241
7526301553100
oct117634025661
930574032647
1010711215025
1145a7224425
1220ab1b7981
131019155474
147387ba037
1542a54851a
hex27e702bb1

10711215025 has 27 divisors (see below), whose sum is σ = 15455607969. Its totient is φ = 7342349280.

The previous prime is 10711215019. The next prime is 10711215083. The reversal of 10711215025 is 52051211701.

The square root of 10711215025 is 103495.

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

It can be written as a sum of positive squares in 4 ways, for example, as 2297189041 + 8414025984 = 47929^2 + 91728^2 .

It is not a de Polignac number, because 10711215025 - 215 = 10711182257 is a prime.

It is a super-2 number, since 2×107112150252 (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 3620847 + ... + 3623803.

Almost surely, 210711215025 is an apocalyptic number.

10711215025 is the 103495-th square number.

10711215025 is the 51748-th centered octagonal number.

It is an amenable number.

10711215025 is a deficient number, since it is larger than the sum of its proper divisors (4744392944).

10711215025 is an frugal number, since it uses more digits than its factorization.

10711215025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5938 (or 2969 counting only the distinct ones).

The product of its (nonzero) digits is 700, while the sum is 25.

Multiplying 10711215025 by its sum of digits (25), we get a square (267780375625 = 5174752).

10711215025 divided by its sum of digits (25) gives a square (428448601 = 206992).

Adding to 10711215025 its reverse (52051211701), we get a palindrome (62762426726).

The spelling of 10711215025 in words is "ten billion, seven hundred eleven million, two hundred fifteen thousand, twenty-five".

Divisors: 1 5 7 25 35 49 175 245 1225 2957 14785 20699 73925 103495 144893 517475 724465 3622325 8743849 43719245 61206943 218596225 306034715 428448601 1530173575 2142243005 10711215025