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2153193830 = 25215319383
BaseRepresentation
bin1000000001010111…
…0010000101100110
312120001121120122122
42000111302011212
513402204200310
6553354225542
7104233563014
oct20025620546
95501546578
102153193830
11a05470437
125011252b2
13284123bb8
14165d758b4
15c9073555
hex80572166

2153193830 has 8 divisors (see below), whose sum is σ = 3875748912. Its totient is φ = 861277528.

The previous prime is 2153193793. The next prime is 2153193841. The reversal of 2153193830 is 383913512.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 107659682 + ... + 107659701.

It is an arithmetic number, because the mean of its divisors is an integer number (484468614).

Almost surely, 22153193830 is an apocalyptic number.

2153193830 is a deficient number, since it is larger than the sum of its proper divisors (1722555082).

2153193830 is a wasteful number, since it uses less digits than its factorization.

2153193830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215319390.

The product of its (nonzero) digits is 19440, while the sum is 35.

The square root of 2153193830 is about 46402.5196514155. The cubic root of 2153193830 is about 1291.3016587132.

The spelling of 2153193830 in words is "two billion, one hundred fifty-three million, one hundred ninety-three thousand, eight hundred thirty".

Divisors: 1 2 5 10 215319383 430638766 1076596915 2153193830