Search a number
-
+
53162105581 = 13891011632791
BaseRepresentation
bin110001100000101101…
…010101101011101101
312002012221212210000101
4301200231111223231
51332333444334311
640231120231101
73561256304314
oct614055255355
9162187783011
1053162105581
1120600693852
12a377a6b491
135022c01210
14280469327b
1515b22a9ec1
hexc60b55aed

53162105581 has 32 divisors (see below), whose sum is σ = 58847765760. Its totient is φ = 47729088000.

The previous prime is 53162105569. The next prime is 53162105587. The reversal of 53162105581 is 18550126135.

It is a cyclic number.

It is not a de Polignac number, because 53162105581 - 215 = 53162072813 is a prime.

It is a super-2 number, since 2×531621055812 (a number of 22 digits) contains 22 as substring.

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 53162105581.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53162105587) 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 31 ways as a sum of consecutive naturals, for example, 19046296 + ... + 19049086.

It is an arithmetic number, because the mean of its divisors is an integer number (1838992680).

Almost surely, 253162105581 is an apocalyptic number.

It is an amenable number.

53162105581 is a deficient number, since it is larger than the sum of its proper divisors (5685660179).

53162105581 is a wasteful number, since it uses less digits than its factorization.

53162105581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3157.

The product of its (nonzero) digits is 36000, while the sum is 37.

The spelling of 53162105581 in words is "fifty-three billion, one hundred sixty-two million, one hundred five thousand, five hundred eighty-one".

Divisors: 1 13 89 101 163 1157 1313 2119 2791 8989 14507 16463 36283 116857 188591 214019 248399 281891 454933 1465207 3229187 3664583 5914129 19047691 25088299 40489037 45948233 326147887 526357481 597327029 4089392737 53162105581