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101206720 = 265316271
BaseRepresentation
bin1100000100001…
…00101011000000
321001102211112001
412002010223000
5201402103340
614013113344
72336146216
oct602045300
9231384461
10101206720
115214611a
1229a88854
1317c76b44
14d626cb6
158d4229a
hex6084ac0

101206720 has 28 divisors (see below), whose sum is σ = 240999264. Its totient is φ = 40482560.

The previous prime is 101206697. The next prime is 101206727. The reversal of 101206720 is 27602101.

It is not an unprimeable number, because it can be changed into a prime (101206727) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 157816 + ... + 158455.

Almost surely, 2101206720 is an apocalyptic number.

101206720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101206720 is an abundant number, since it is smaller than the sum of its proper divisors (139792544).

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

101206720 is an equidigital number, since it uses as much as digits as its factorization.

101206720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316288 (or 316278 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 19.

The square root of 101206720 is about 10060.1550683874. The cubic root of 101206720 is about 466.0184560467.

Adding to 101206720 its reverse (27602101), we get a palindrome (128808821).

It can be divided in two parts, 101206 and 720, that added together give a triangular number (101926 = T451).

The spelling of 101206720 in words is "one hundred one million, two hundred six thousand, seven hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 32 40 64 80 160 320 316271 632542 1265084 1581355 2530168 3162710 5060336 6325420 10120672 12650840 20241344 25301680 50603360 101206720