Search a number
-
+
2061215369 = 16757721391
BaseRepresentation
bin111101011011011…
…1010011010001001
312022122112120220222
41322312322122021
513210132342434
6540310555425
7102036020153
oct17266723211
95278476828
102061215369
11968558684
12496368b75
1326b05b585
14157a71ad3
15c0e5572e
hex7adba689

2061215369 has 8 divisors (see below), whose sum is σ = 2077248768. Its totient is φ = 2045226240.

The previous prime is 2061215341. The next prime is 2061215393. The reversal of 2061215369 is 9635121602.

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 2061215369 - 220 = 2060166793 is a prime.

It is a super-2 number, since 2×20612153692 = 8497217594803612322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2061215309) 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, 85664 + ... + 107054.

It is an arithmetic number, because the mean of its divisors is an integer number (259656096).

Almost surely, 22061215369 is an apocalyptic number.

It is an amenable number.

2061215369 is a deficient number, since it is larger than the sum of its proper divisors (16033399).

2061215369 is a wasteful number, since it uses less digits than its factorization.

2061215369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22135.

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

The square root of 2061215369 is about 45400.6097866537. The cubic root of 2061215369 is about 1272.6465094297.

The spelling of 2061215369 in words is "two billion, sixty-one million, two hundred fifteen thousand, three hundred sixty-nine".

Divisors: 1 167 577 21391 96359 3572297 12342607 2061215369