Search a number
-
+
2055749397 = 313142936887
BaseRepresentation
bin111101010001000…
…0011111100010101
312022021020220000120
41322202003330111
513202232440042
6535553502153
7101641403322
oct17242037425
95267226016
102055749397
11965464a49
12494571959
13269b96680
1415704bb49
15c0725dec
hex7a883f15

2055749397 has 16 divisors (see below), whose sum is σ = 2953991040. Its totient is φ = 1264156992.

The previous prime is 2055749393. The next prime is 2055749491. The reversal of 2055749397 is 7939475502.

2055749397 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2055749397 - 22 = 2055749393 is a prime.

It is a super-2 number, since 2×20557493972 = 8452211166531727218, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2055749393) 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, 37288 + ... + 74174.

It is an arithmetic number, because the mean of its divisors is an integer number (184624440).

Almost surely, 22055749397 is an apocalyptic number.

It is an amenable number.

2055749397 is a deficient number, since it is larger than the sum of its proper divisors (898241643).

2055749397 is a wasteful number, since it uses less digits than its factorization.

2055749397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38332.

The product of its (nonzero) digits is 2381400, while the sum is 51.

The square root of 2055749397 is about 45340.3727046878. The cubic root of 2055749397 is about 1271.5205704532.

The spelling of 2055749397 in words is "two billion, fifty-five million, seven hundred forty-nine thousand, three hundred ninety-seven".

Divisors: 1 3 13 39 1429 4287 18577 36887 55731 110661 479531 1438593 52711523 158134569 685249799 2055749397