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BaseRepresentation
bin11001010110111101000010…
…111011111111010000000101
3112121220000122121222000121101
4121112331002323333100011
5104104240421413001221
61033111300423020101
732330446106104231
oct3126750273772005
9477800577860541
10111528538797061
1132599a95676181
1210612b89b9a631
134a30133122a19
141d7801d9315c1
15cd61a72a1d91
hex656f42eff405

111528538797061 has 32 divisors (see below), whose sum is σ = 116932977213440. Its totient is φ = 106272556056576.

The previous prime is 111528538797047. The next prime is 111528538797101. The reversal of 111528538797061 is 160797835825111.

It is a cyclic number.

It is not a de Polignac number, because 111528538797061 - 235 = 111494179058693 is a prime.

It is a super-2 number, since 2×1115285387970612 (a number of 29 digits) contains 22 as substring.

It is a pancake number, because a pancake can be divided into 111528538797061 parts by 14935095 straight cuts.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111528538796984 and 111528538797002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111528538797461) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1728743941 + ... + 1728808453.

It is an arithmetic number, because the mean of its divisors is an integer number (3654155537920).

Almost surely, 2111528538797061 is an apocalyptic number.

111528538797061 is the 5644936-th centered heptagonal number.

It is an amenable number.

111528538797061 is a deficient number, since it is larger than the sum of its proper divisors (5404438416379).

111528538797061 is a wasteful number, since it uses less digits than its factorization.

111528538797061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69413.

The product of its (nonzero) digits is 25401600, while the sum is 64.

The spelling of 111528538797061 in words is "one hundred eleven trillion, five hundred twenty-eight billion, five hundred thirty-eight million, seven hundred ninety-seven thousand, sixty-one".