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102419669 = 119310879
BaseRepresentation
bin1100001101011…
…00110011010101
321010201110101002
412012230303111
5202204412134
614055113045
72352360422
oct606546325
9233643332
10102419669
11528a4460
122a372785
13182acc71
14d860d49
158ed187e
hex61accd5

102419669 has 4 divisors (see below), whose sum is σ = 111730560. Its totient is φ = 93108780.

The previous prime is 102419659. The next prime is 102419689. The reversal of 102419669 is 966914201.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 102419669 - 28 = 102419413 is a prime.

It is a super-2 number, since 2×1024196692 = 20979577196139122, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102419659) 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, 4655429 + ... + 4655450.

It is an arithmetic number, because the mean of its divisors is an integer number (27932640).

Almost surely, 2102419669 is an apocalyptic number.

It is an amenable number.

102419669 is a deficient number, since it is larger than the sum of its proper divisors (9310891).

102419669 is an equidigital number, since it uses as much as digits as its factorization.

102419669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9310890.

The product of its (nonzero) digits is 23328, while the sum is 38.

The square root of 102419669 is about 10120.2603227387. The cubic root of 102419669 is about 467.8727906260.

The spelling of 102419669 in words is "one hundred two million, four hundred nineteen thousand, six hundred sixty-nine".

Divisors: 1 11 9310879 102419669