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107572609 = 891208681
BaseRepresentation
bin1100110100101…
…10110110000001
321111102020212201
412122112312001
5210014310414
614401353201
72444231524
oct632266601
9244366781
10107572609
11557a3991
1230038801
1319395541
1410402bbb
15969d574
hex6696d81

107572609 has 4 divisors (see below), whose sum is σ = 108781380. Its totient is φ = 106363840.

The previous prime is 107572607. The next prime is 107572681. The reversal of 107572609 is 906275701.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 906275701 = 6713526503.

It can be written as a sum of positive squares in 2 ways, for example, as 14025025 + 93547584 = 3745^2 + 9672^2 .

It is a cyclic number.

It is not a de Polignac number, because 107572609 - 21 = 107572607 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (107572601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 604252 + ... + 604429.

It is an arithmetic number, because the mean of its divisors is an integer number (27195345).

Almost surely, 2107572609 is an apocalyptic number.

It is an amenable number.

107572609 is a deficient number, since it is larger than the sum of its proper divisors (1208771).

107572609 is an equidigital number, since it uses as much as digits as its factorization.

107572609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1208770.

The product of its (nonzero) digits is 26460, while the sum is 37.

The square root of 107572609 is about 10371.7216025113. The cubic root of 107572609 is about 475.5912990788.

It can be divided in two parts, 10757 and 2609, that added together give a triangular number (13366 = T163).

The spelling of 107572609 in words is "one hundred seven million, five hundred seventy-two thousand, six hundred nine".

Divisors: 1 89 1208681 107572609