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146623213 = 1118173643
BaseRepresentation
bin10001011110101…
…00101011101101
3101012220020020101
420233110223231
5300013420323
622314351101
73430163632
oct1057245355
9335806211
10146623213
1175846210
124112b491
13244b8bc9
141568a189
15cd13dad
hex8bd4aed

146623213 has 8 divisors (see below), whose sum is σ = 160838496. Its totient is φ = 132555600.

The previous prime is 146623189. The next prime is 146623219. The reversal of 146623213 is 312326641.

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 146623213 - 29 = 146622701 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 (146623219) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34831 + ... + 38812.

It is an arithmetic number, because the mean of its divisors is an integer number (20104812).

Almost surely, 2146623213 is an apocalyptic number.

It is an amenable number.

146623213 is a deficient number, since it is larger than the sum of its proper divisors (14215283).

146623213 is a wasteful number, since it uses less digits than its factorization.

146623213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73835.

The product of its digits is 5184, while the sum is 28.

The square root of 146623213 is about 12108.8072492711. The cubic root of 146623213 is about 527.3119061643.

Adding to 146623213 its reverse (312326641), we get a palindrome (458949854).

The spelling of 146623213 in words is "one hundred forty-six million, six hundred twenty-three thousand, two hundred thirteen".

Divisors: 1 11 181 1991 73643 810073 13329383 146623213