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2158153141 = 6313420211
BaseRepresentation
bin1000000010100010…
…1100110110110101
312120101221112112211
42000220230312311
513404441400031
6554052413421
7104323666444
oct20050546665
95511845484
102158153141
11a08248441
12502917271
1328516c2c1
141668a6d5b
15c9702bb1
hex80a2cdb5

2158153141 has 4 divisors (see below), whose sum is σ = 2161573984. Its totient is φ = 2154732300.

The previous prime is 2158153139. The next prime is 2158153157. The reversal of 2158153141 is 1413518512.

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 2158153141 - 21 = 2158153139 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 (2158103141) 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, 1709475 + ... + 1710736.

It is an arithmetic number, because the mean of its divisors is an integer number (540393496).

Almost surely, 22158153141 is an apocalyptic number.

It is an amenable number.

2158153141 is a deficient number, since it is larger than the sum of its proper divisors (3420843).

2158153141 is an equidigital number, since it uses as much as digits as its factorization.

2158153141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3420842.

The product of its digits is 4800, while the sum is 31.

The square root of 2158153141 is about 46455.9268662245. The cubic root of 2158153141 is about 1292.2922888645.

The spelling of 2158153141 in words is "two billion, one hundred fifty-eight million, one hundred fifty-three thousand, one hundred forty-one".

Divisors: 1 631 3420211 2158153141