Search a number
-
+
356492161 = 7922392
BaseRepresentation
bin10101001111111…
…010001110000001
3220211210200022101
4111033322032001
51212230222121
655212510401
711556063514
oct2517721601
9824720271
10356492161
11173259923
129b47b401
1358b1a20c
14354bad7b
152146c491
hex153fa381

356492161 has 9 divisors (see below), whose sum is σ = 362578881. Its totient is φ = 350506884.

The previous prime is 356492137. The next prime is 356492173. The reversal of 356492161 is 161294653.

The square root of 356492161 is 18881.

It is a perfect power (a square), and thus also a powerful number.

It is a de Polignac number, because none of the positive numbers 2k-356492161 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 356492161.

It is not an unprimeable number, because it can be changed into a prime (356492561) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1491480 + ... + 1491718.

Almost surely, 2356492161 is an apocalyptic number.

356492161 is the 18881-st square number.

356492161 is the 9441-st centered octagonal number.

It is an amenable number.

356492161 is a deficient number, since it is larger than the sum of its proper divisors (6086720).

356492161 is an frugal number, since it uses more digits than its factorization.

356492161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 636 (or 318 counting only the distinct ones).

The product of its digits is 38880, while the sum is 37.

The cubic root of 356492161 is about 709.0605580872.

It can be divided in two parts, 356492 and 161, that added together give a palindrome (356653).

The spelling of 356492161 in words is "three hundred fifty-six million, four hundred ninety-two thousand, one hundred sixty-one".

Divisors: 1 79 239 6241 18881 57121 1491599 4512559 356492161