Search a number
-
+
53240247047 = 138985953569
BaseRepresentation
bin110001100101010111…
…011011001100000111
312002102101220202221202
4301211113123030013
51333014000401142
640242551133115
73563225430101
oct614527331407
9162371822852
1053240247047
1120640805679
12a39a07419b
135036160680
142810bd4571
1515b9093032
hexc655db307

53240247047 has 16 divisors (see below), whose sum is σ = 58048452000. Its totient is φ = 48535179264.

The previous prime is 53240247041. The next prime is 53240247061. The reversal of 53240247047 is 74074204235.

It is a happy number.

It is not a de Polignac number, because 53240247047 - 210 = 53240246023 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 53240247047.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53240247041) 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, 967079 + ... + 1020647.

It is an arithmetic number, because the mean of its divisors is an integer number (3628028250).

Almost surely, 253240247047 is an apocalyptic number.

53240247047 is a deficient number, since it is larger than the sum of its proper divisors (4808204953).

53240247047 is a wasteful number, since it uses less digits than its factorization.

53240247047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54530.

The product of its (nonzero) digits is 188160, while the sum is 38.

The spelling of 53240247047 in words is "fifty-three billion, two hundred forty million, two hundred forty-seven thousand, forty-seven".

Divisors: 1 13 89 859 1157 11167 53569 76451 696397 993863 4767641 46015771 61979333 598205023 4095403619 53240247047