Search a number
-
+
53030012251531 = 731406096017827
BaseRepresentation
bin11000000111011000000110…
…00010101110110110001011
320221202121201201202212220111
430003230003002232312023
523422320431114022111
6304441352403335151
714112202065541630
oct1403540302566613
9227677651685814
1053030012251531
11159959a1476627
125b456a39814b7
13237892a0175a3
14d14948418187
1561e6740eca21
hex303b030aed8b

53030012251531 has 16 divisors (see below), whose sum is σ = 62562302740480. Its totient is φ = 43986938077440.

The previous prime is 53030012251481. The next prime is 53030012251583. The reversal of 53030012251531 is 13515221003035.

It is a cyclic number.

It is not a de Polignac number, because 53030012251531 - 225 = 53029978697099 is a prime.

It is a super-2 number, since 2×530300122515312 (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a junction number, because it is equal to n+sod(n) for n = 53030012251493 and 53030012251502.

It is not an unprimeable number, because it can be changed into a prime (53030012251631) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5803240 + ... + 11821066.

It is an arithmetic number, because the mean of its divisors is an integer number (3910143921280).

Almost surely, 253030012251531 is an apocalyptic number.

53030012251531 is a deficient number, since it is larger than the sum of its proper divisors (9532290488949).

53030012251531 is a wasteful number, since it uses less digits than its factorization.

53030012251531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6058474.

The product of its (nonzero) digits is 13500, while the sum is 31.

Adding to 53030012251531 its reverse (13515221003035), we get a palindrome (66545233254566).

The spelling of 53030012251531 in words is "fifty-three trillion, thirty billion, twelve million, two hundred fifty-one thousand, five hundred thirty-one".

Divisors: 1 7 31 217 40609 284263 1258879 6017827 8812153 42124789 186552637 1305868459 244377936643 1710645556501 7575716035933 53030012251531