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102214135 = 520442827
BaseRepresentation
bin1100001011110…
…10100111110111
321010100000102201
412011322213313
5202131323020
614050445331
72350543252
oct605724767
9233300381
10102214135
1152773aa1
122a293847
131823a54a
14d80a099
158e90a0a
hex617a9f7

102214135 has 4 divisors (see below), whose sum is σ = 122656968. Its totient is φ = 81771304.

The previous prime is 102214117. The next prime is 102214141. The reversal of 102214135 is 531412201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 531412201 = 3531505417.

It is a cyclic number.

It is not a de Polignac number, because 102214135 - 25 = 102214103 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10221409 + ... + 10221418.

It is an arithmetic number, because the mean of its divisors is an integer number (30664242).

Almost surely, 2102214135 is an apocalyptic number.

102214135 is a deficient number, since it is larger than the sum of its proper divisors (20442833).

102214135 is an equidigital number, since it uses as much as digits as its factorization.

102214135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20442832.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 102214135 is about 10110.1006424269. The cubic root of 102214135 is about 467.5596080590.

Adding to 102214135 its reverse (531412201), we get a palindrome (633626336).

The spelling of 102214135 in words is "one hundred two million, two hundred fourteen thousand, one hundred thirty-five".

Divisors: 1 5 20442827 102214135