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2126193461 = 71915986417
BaseRepresentation
bin111111010111011…
…0010001100110101
312111011210211002222
41332232302030311
513323301142321
6550551412125
7103455226520
oct17656621465
95434724088
102126193461
119a11a9687
124b4084045
1327b65c352
14162547bb7
15c69dd3ab
hex7ebb2335

2126193461 has 8 divisors (see below), whose sum is σ = 2557826880. Its totient is φ = 1726532928.

The previous prime is 2126193449. The next prime is 2126193463. The reversal of 2126193461 is 1643916212.

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 2126193461 - 210 = 2126192437 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2126193463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7993076 + ... + 7993341.

It is an arithmetic number, because the mean of its divisors is an integer number (319728360).

Almost surely, 22126193461 is an apocalyptic number.

It is an amenable number.

2126193461 is a deficient number, since it is larger than the sum of its proper divisors (431633419).

2126193461 is a wasteful number, since it uses less digits than its factorization.

2126193461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15986443.

The product of its digits is 15552, while the sum is 35.

The square root of 2126193461 is about 46110.6653714734. The cubic root of 2126193461 is about 1285.8814345435.

The spelling of 2126193461 in words is "two billion, one hundred twenty-six million, one hundred ninety-three thousand, four hundred sixty-one".

Divisors: 1 7 19 133 15986417 111904919 303741923 2126193461