Search a number
-
+
109689307 = 7131205377
BaseRepresentation
bin1101000100110…
…11100111011011
321122101210102221
412202123213123
5211040024212
614515004511
72501225620
oct642334733
9248353387
10109689307
1156a0a222
1230899737
1319956b20
14107d4347
15996a807
hex689b9db

109689307 has 8 divisors (see below), whose sum is σ = 135002336. Its totient is φ = 86787072.

The previous prime is 109689271. The next prime is 109689311. The reversal of 109689307 is 703986901.

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 109689307 - 27 = 109689179 is a prime.

It is not an unprimeable number, because it can be changed into a prime (109689317) 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, 602598 + ... + 602779.

It is an arithmetic number, because the mean of its divisors is an integer number (16875292).

Almost surely, 2109689307 is an apocalyptic number.

109689307 is a deficient number, since it is larger than the sum of its proper divisors (25313029).

109689307 is a wasteful number, since it uses less digits than its factorization.

109689307 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1205397.

The product of its (nonzero) digits is 81648, while the sum is 43.

The square root of 109689307 is about 10473.2663004432. The cubic root of 109689307 is about 478.6904510463.

The spelling of 109689307 in words is "one hundred nine million, six hundred eighty-nine thousand, three hundred seven".

Divisors: 1 7 13 91 1205377 8437639 15669901 109689307