Search a number
-
+
51553025161430 = 25132387316611307
BaseRepresentation
bin10111011100011000111111…
…10000000111100011010110
320202112102100221222200211012
423232030133300013203112
523224121043420131210
6301351044404212222
713600404010452062
oct1356143760074326
9222472327880735
1051553025161430
11154765737a0041
1259473a399a072
13229c577560340
14ca327327aaa2
155e602c263305
hex2ee31fc078d6

51553025161430 has 32 divisors (see below), whose sum is σ = 99937748532384. Its totient is φ = 19034164647936.

The previous prime is 51553025161387. The next prime is 51553025161439. The reversal of 51553025161430 is 3416152035515.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51553025161439) 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, 5202164 + ... + 11409143.

It is an arithmetic number, because the mean of its divisors is an integer number (3123054641637).

Almost surely, 251553025161430 is an apocalyptic number.

51553025161430 is a deficient number, since it is larger than the sum of its proper divisors (48384723370954).

51553025161430 is a wasteful number, since it uses less digits than its factorization.

51553025161430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16635200.

The product of its (nonzero) digits is 270000, while the sum is 41.

Adding to 51553025161430 its reverse (3416152035515), we get a palindrome (54969177196945).

The spelling of 51553025161430 in words is "fifty-one trillion, five hundred fifty-three billion, twenty-five million, one hundred sixty-one thousand, four hundred thirty".

Divisors: 1 2 5 10 13 26 65 130 23873 47746 119365 238730 310349 620698 1551745 3103490 16611307 33222614 83056535 166113070 215946991 431893982 1079734955 2159469910 396561732011 793123464022 1982808660055 3965617320110 5155302516143 10310605032286 25776512580715 51553025161430