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102214405 = 537953939
BaseRepresentation
bin1100001011110…
…10101100000101
321010100000210201
412011322230011
5202131330110
614050450501
72350544116
oct605725405
9233300721
10102214405
1152774217
122a293a31
131823a6c7
14d80a20d
158e90b3a
hex617ab05

102214405 has 8 divisors (see below), whose sum is σ = 122983200. Its totient is φ = 81554256.

The previous prime is 102214391. The next prime is 102214439. The reversal of 102214405 is 504412201.

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 102214405 - 213 = 102206213 is a prime.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 25075 + ... + 28864.

It is an arithmetic number, because the mean of its divisors is an integer number (15372900).

Almost surely, 2102214405 is an apocalyptic number.

It is an amenable number.

102214405 is a deficient number, since it is larger than the sum of its proper divisors (20768795).

102214405 is an equidigital number, since it uses as much as digits as its factorization.

102214405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54323.

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 102214405 is about 10110.1139954008. The cubic root of 102214405 is about 467.5600197470.

Adding to 102214405 its reverse (504412201), we get a palindrome (606626606).

The spelling of 102214405 in words is "one hundred two million, two hundred fourteen thousand, four hundred five".

Divisors: 1 5 379 1895 53939 269695 20442881 102214405