Search a number
-
+
553770381 = 3971902991
BaseRepresentation
bin100001000000011…
…101110110001101
31102121000110011010
4201000131312031
52113231123011
6130541115433
716502653623
oct4100356615
91377013133
10553770381
1126465297a
12135558b79
138a9606a8
1453791513
153393a1a6
hex2101dd8d

553770381 has 8 divisors (see below), whose sum is σ = 745972864. Its totient is φ = 365374080.

The previous prime is 553770323. The next prime is 553770407. The reversal of 553770381 is 183077355.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 553770381 - 26 = 553770317 is a prime.

It is a super-2 number, since 2×5537703812 = 613323269745770322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (553770281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 951205 + ... + 951786.

It is an arithmetic number, because the mean of its divisors is an integer number (93246608).

Almost surely, 2553770381 is an apocalyptic number.

It is an amenable number.

553770381 is a deficient number, since it is larger than the sum of its proper divisors (192202483).

553770381 is a wasteful number, since it uses less digits than its factorization.

553770381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1903091.

The product of its (nonzero) digits is 88200, while the sum is 39.

The square root of 553770381 is about 23532.3262980947. The cubic root of 553770381 is about 821.1892228143.

The spelling of 553770381 in words is "five hundred fifty-three million, seven hundred seventy thousand, three hundred eighty-one".

Divisors: 1 3 97 291 1902991 5708973 184590127 553770381