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121514107 = 11135316033
BaseRepresentation
bin1110011111000…
…10100001111011
322110122120000111
413033202201323
5222101422412
620020245151
73003565351
oct717424173
9273576014
10121514107
1162656390
12348407b7
131c237150
14121d17d1
15aa042a7
hex73e287b

121514107 has 16 divisors (see below), whose sum is σ = 145460448. Its totient is φ = 100039680.

The previous prime is 121514093. The next prime is 121514117. The reversal of 121514107 is 701415121.

It is not a de Polignac number, because 121514107 - 223 = 113125499 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121514117) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 438 + ... + 15595.

It is an arithmetic number, because the mean of its divisors is an integer number (9091278).

Almost surely, 2121514107 is an apocalyptic number.

121514107 is a deficient number, since it is larger than the sum of its proper divisors (23946341).

121514107 is a wasteful number, since it uses less digits than its factorization.

121514107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16110.

The product of its (nonzero) digits is 280, while the sum is 22.

The square root of 121514107 is about 11023.3437304658. The cubic root of 121514107 is about 495.3082554350.

Adding to 121514107 its reverse (701415121), we get a palindrome (822929228).

The spelling of 121514107 in words is "one hundred twenty-one million, five hundred fourteen thousand, one hundred seven".

Divisors: 1 11 13 53 143 583 689 7579 16033 176363 208429 849749 2292719 9347239 11046737 121514107