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51343253587832 = 23234115017453209
BaseRepresentation
bin10111010110010010010000…
…11001000100011101111000
320201210100220121202122022112
423223021020121010131320
523212201440404302312
6301110433131311452
713546266454503233
oct1353111031043570
9221710817678275
1051343253587832
11153a5608152a88
1259127bb8ab588
13228585698196b
14c970534d841a
155e0851002d22
hex2eb248644778

51343253587832 has 64 divisors (see below), whose sum is σ = 102911373633600. Its totient is φ = 23954907074560.

The previous prime is 51343253587831. The next prime is 51343253587889. The reversal of 51343253587832 is 23878535234315.

It is a happy number.

It is a super-2 number, since 2×513432535878322 (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51343253587831) 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, 113061644 + ... + 113514852.

It is an arithmetic number, because the mean of its divisors is an integer number (1607990213025).

Almost surely, 251343253587832 is an apocalyptic number.

It is an amenable number.

51343253587832 is an abundant number, since it is smaller than the sum of its proper divisors (51568120045768).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51343253587832 is a wasteful number, since it uses less digits than its factorization.

51343253587832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 468296 (or 468292 counting only the distinct ones).

The product of its digits is 72576000, while the sum is 59.

The spelling of 51343253587832 in words is "fifty-one trillion, three hundred forty-three billion, two hundred fifty-three million, five hundred eighty-seven thousand, eight hundred thirty-two".

Divisors: 1 2 4 8 23 41 46 82 92 164 184 328 943 1886 3772 7544 15017 30034 60068 120136 345391 453209 615697 690782 906418 1231394 1381564 1812836 2462788 2763128 3625672 4925576 10423807 14161031 18581569 20847614 28322062 37163138 41695228 56644124 74326276 83390456 113288248 148652552 427376087 854752174 1709504348 3419008696 6805839553 13611679106 27223358212 54446716424 156534309719 279039421673 313068619438 558078843346 626137238876 1116157686692 1252274477752 2232315373384 6417906698479 12835813396958 25671626793916 51343253587832