Search a number
-
+
57018845973 = 3163184763131
BaseRepresentation
bin110101000110100101…
…101000101100010101
312110011202000111020010
4311012211220230111
51413233311032343
642105531430433
74055660123355
oct650645505425
9173152014203
1057018845973
11221aa719a01
12b0735b5419
1354b8c43a1b
142a8c994b65
15173ab82d33
hexd46968b15

57018845973 has 16 divisors (see below), whose sum is σ = 76534166016. Its totient is φ = 37758305520.

The previous prime is 57018845969. The next prime is 57018846013. The reversal of 57018845973 is 37954881075.

It is a happy number.

It is not a de Polignac number, because 57018845973 - 22 = 57018845969 is a prime.

It is a super-2 number, since 2×570188459732 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57018845953) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 871618 + ... + 934748.

It is an arithmetic number, because the mean of its divisors is an integer number (4783385376).

Almost surely, 257018845973 is an apocalyptic number.

It is an amenable number.

57018845973 is a deficient number, since it is larger than the sum of its proper divisors (19515320043).

57018845973 is a wasteful number, since it uses less digits than its factorization.

57018845973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65144.

The product of its (nonzero) digits is 8467200, while the sum is 57.

The spelling of 57018845973 in words is "fifty-seven billion, eighteen million, eight hundred forty-five thousand, nine hundred seventy-three".

Divisors: 1 3 163 489 1847 5541 63131 189393 301061 903183 10290353 30871059 116602957 349808871 19006281991 57018845973