Search a number
-
+
2071157461 = 31615931847
BaseRepresentation
bin111101101110011…
…0101101011010101
312100100020200220121
41323130311223111
513220204014321
6541304031541
7102216355642
oct17334655325
95310220817
102071157461
1197312928a
124997625b1
1327012c979
141590dcdc9
15c1c6b441
hex7b735ad5

2071157461 has 16 divisors (see below), whose sum is σ = 2177860608. Its totient is φ = 1967097600.

The previous prime is 2071157449. The next prime is 2071157477. The reversal of 2071157461 is 1647511702.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2071157461 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2071157411) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1120440 + ... + 1122286.

It is an arithmetic number, because the mean of its divisors is an integer number (136116288).

Almost surely, 22071157461 is an apocalyptic number.

It is an amenable number.

2071157461 is a deficient number, since it is larger than the sum of its proper divisors (106703147).

2071157461 is a wasteful number, since it uses less digits than its factorization.

2071157461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2532.

The product of its (nonzero) digits is 11760, while the sum is 34.

The square root of 2071157461 is about 45509.9710063630. The cubic root of 2071157461 is about 1274.6893947478.

The spelling of 2071157461 in words is "two billion, seventy-one million, one hundred fifty-seven thousand, four hundred sixty-one".

Divisors: 1 31 61 593 1847 1891 18383 36173 57257 112667 1095271 1121363 3492677 33953401 66811531 2071157461