Search a number
-
+
2085713954 = 21042856977
BaseRepresentation
bin111110001010001…
…0111100000100010
312101100122020122222
41330110113200202
513232420321304
6542544031042
7102454163462
oct17424274042
95340566588
102085713954
11980370845
124a2602482
1327315848c
1415b00bba2
15c31944be
hex7c517822

2085713954 has 4 divisors (see below), whose sum is σ = 3128570934. Its totient is φ = 1042856976.

The previous prime is 2085713951. The next prime is 2085713977. The reversal of 2085713954 is 4593175802.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4593175802 = 22296587901.

It can be written as a sum of positive squares in only one way, i.e., 1770473929 + 315240025 = 42077^2 + 17755^2 .

It is not an unprimeable number, because it can be changed into a prime (2085713951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 521428487 + ... + 521428490.

Almost surely, 22085713954 is an apocalyptic number.

2085713954 is a deficient number, since it is larger than the sum of its proper divisors (1042856980).

2085713954 is a wasteful number, since it uses less digits than its factorization.

2085713954 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1042856979.

The product of its (nonzero) digits is 302400, while the sum is 44.

The square root of 2085713954 is about 45669.6174058859. The cubic root of 2085713954 is about 1277.6686800269.

The spelling of 2085713954 in words is "two billion, eighty-five million, seven hundred thirteen thousand, nine hundred fifty-four".

Divisors: 1 2 1042856977 2085713954