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69893149 = 107653207
BaseRepresentation
bin1000010101001…
…11110000011101
311212111221101011
410022213300131
5120343040044
610534015221
71506040054
oct412476035
9155457334
1069893149
11364a8837
121b4a7511
1311631cc1
1493d539b
156209134
hex42a7c1d

69893149 has 4 divisors (see below), whose sum is σ = 70546464. Its totient is φ = 69239836.

The previous prime is 69893107. The next prime is 69893237. The reversal of 69893149 is 94139896.

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 69893149 - 213 = 69884957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69833149) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 326497 + ... + 326710.

It is an arithmetic number, because the mean of its divisors is an integer number (17636616).

Almost surely, 269893149 is an apocalyptic number.

It is an amenable number.

69893149 is a deficient number, since it is larger than the sum of its proper divisors (653315).

69893149 is a wasteful number, since it uses less digits than its factorization.

69893149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 653314.

The product of its digits is 419904, while the sum is 49.

The square root of 69893149 is about 8360.2122580710. The cubic root of 69893149 is about 411.9187263099.

The spelling of 69893149 in words is "sixty-nine million, eight hundred ninety-three thousand, one hundred forty-nine".

Divisors: 1 107 653207 69893149