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100136689 = 379727901
BaseRepresentation
bin1011111011111…
…11011011110001
320222102110201021
411331333123301
5201113333224
613534135441
72324101462
oct575773361
9228373637
10100136689
11515851a4
1229651581
1317990aa3
14d428d69
158bd01e4
hex5f7f6f1

100136689 has 8 divisors (see below), whose sum is σ = 103907048. Its totient is φ = 96422400.

The previous prime is 100136683. The next prime is 100136693. The reversal of 100136689 is 986631001.

It can be written as a sum of positive squares in 4 ways, for example, as 54641664 + 45495025 = 7392^2 + 6745^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 100136689 - 217 = 100005617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100136683) 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, 10362 + ... + 17539.

It is an arithmetic number, because the mean of its divisors is an integer number (12988381).

Almost surely, 2100136689 is an apocalyptic number.

It is an amenable number.

100136689 is a deficient number, since it is larger than the sum of its proper divisors (3770359).

100136689 is an equidigital number, since it uses as much as digits as its factorization.

100136689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28035.

The product of its (nonzero) digits is 7776, while the sum is 34.

The square root of 100136689 is about 10006.8321161095. The cubic root of 100136689 is about 464.3702717876.

The spelling of 100136689 in words is "one hundred million, one hundred thirty-six thousand, six hundred eighty-nine".

Divisors: 1 37 97 3589 27901 1032337 2706397 100136689