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102044219 = 313291749
BaseRepresentation
bin1100001010100…
…01001000111011
321010000101100112
412011101020323
5202110403334
614043054535
72346235004
oct605211073
9233011315
10102044219
1152668372
122a21144b
13181ab0c4
14d7a41ab
158e5a4ce
hex615123b

102044219 has 4 divisors (see below), whose sum is σ = 105336000. Its totient is φ = 98752440.

The previous prime is 102044197. The next prime is 102044249. The reversal of 102044219 is 912440201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 912440201 = 1753672953.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-102044219 is a prime.

It is a super-2 number, since 2×1020442192 = 20826045262639922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102044194 and 102044203.

It is not an unprimeable number, because it can be changed into a prime (102044249) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1645844 + ... + 1645905.

It is an arithmetic number, because the mean of its divisors is an integer number (26334000).

Almost surely, 2102044219 is an apocalyptic number.

102044219 is a deficient number, since it is larger than the sum of its proper divisors (3291781).

102044219 is an equidigital number, since it uses as much as digits as its factorization.

102044219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3291780.

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 102044219 is about 10101.6938678620. The cubic root of 102044219 is about 467.3003812850.

The spelling of 102044219 in words is "one hundred two million, forty-four thousand, two hundred nineteen".

Divisors: 1 31 3291749 102044219