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100530580 = 2257196991
BaseRepresentation
bin1011111110111…
…11100110010100
321000011111000211
411333133212110
5201213434310
613550415204
72330332033
oct577374624
9230144024
10100530580
1151824127
1229801504
1317a9b167
14d4cc71a
158c5bc8a
hex5fdf994

100530580 has 24 divisors (see below), whose sum is σ = 211438080. Its totient is φ = 40150560.

The previous prime is 100530569. The next prime is 100530589. The reversal of 100530580 is 85035001.

It is a super-3 number, since 3×1005305803 (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100530589) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10885 + ... + 17875.

It is an arithmetic number, because the mean of its divisors is an integer number (8809920).

Almost surely, 2100530580 is an apocalyptic number.

100530580 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100530580 is an abundant number, since it is smaller than the sum of its proper divisors (110907500).

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

100530580 is a wasteful number, since it uses less digits than its factorization.

100530580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7719 (or 7717 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 100530580 is about 10026.4939036535. The cubic root of 100530580 is about 464.9783471630.

Adding to 100530580 its reverse (85035001), we get a palindrome (185565581).

The spelling of 100530580 in words is "one hundred million, five hundred thirty thousand, five hundred eighty".

Divisors: 1 2 4 5 10 20 719 1438 2876 3595 6991 7190 13982 14380 27964 34955 69910 139820 5026529 10053058 20106116 25132645 50265290 100530580