Search a number
-
+
57431147205 = 3534361111427
BaseRepresentation
bin110101011111001010…
…011100001011000101
312111020110211120012010
4311133022130023011
51420104333202310
642214500444433
74102124460645
oct653712341305
9174213746163
1057431147205
11223a1426a23
12b1696a9719
1355534a1453
142acb63c525
151761e76320
hexd5f29c2c5

57431147205 has 16 divisors (see below), whose sum is σ = 91893334464. Its totient is φ = 30628778880.

The previous prime is 57431147201. The next prime is 57431147273. The reversal of 57431147205 is 50274113475.

It is not a de Polignac number, because 57431147205 - 22 = 57431147201 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57431147201) 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 15 ways as a sum of consecutive naturals, for example, 459702 + ... + 571128.

It is an arithmetic number, because the mean of its divisors is an integer number (5743333404).

Almost surely, 257431147205 is an apocalyptic number.

It is an amenable number.

57431147205 is a deficient number, since it is larger than the sum of its proper divisors (34462187259).

57431147205 is a wasteful number, since it uses less digits than its factorization.

57431147205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145796.

The product of its (nonzero) digits is 117600, while the sum is 39.

The spelling of 57431147205 in words is "fifty-seven billion, four hundred thirty-one million, one hundred forty-seven thousand, two hundred five".

Divisors: 1 3 5 15 34361 103083 111427 171805 334281 515415 557135 1671405 3828743147 11486229441 19143715735 57431147205