Search a number
-
+
69654021 = 374331249
BaseRepresentation
bin1000010011011…
…01011000000101
311212001210100120
410021231120011
5120312412041
610524532153
71504022643
oct411553005
9155053316
1069654021
1136355108
121b3b1059
131157a1c8
149372193
1561ad366
hex426d605

69654021 has 8 divisors (see below), whose sum is σ = 93000000. Its totient is φ = 46372032.

The previous prime is 69654001. The next prime is 69654037. The reversal of 69654021 is 12045696.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 69654021 - 25 = 69653989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69654001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13396 + ... + 17853.

It is an arithmetic number, because the mean of its divisors is an integer number (11625000).

Almost surely, 269654021 is an apocalyptic number.

It is an amenable number.

69654021 is a deficient number, since it is larger than the sum of its proper divisors (23345979).

69654021 is a wasteful number, since it uses less digits than its factorization.

69654021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31995.

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 69654021 is about 8345.8984537316. The cubic root of 69654021 is about 411.4484186475.

The spelling of 69654021 in words is "sixty-nine million, six hundred fifty-four thousand, twenty-one".

Divisors: 1 3 743 2229 31249 93747 23218007 69654021