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51023143210 = 25132194493539
BaseRepresentation
bin101111100001001101…
…110110000100101010
311212200220001020020211
4233201031312010222
51313443411040320
635234551011334
73454254363364
oct574115660452
9155626036224
1051023143210
111a703263756
129a7b669b4a
134a71a20c00
142680583d34
1514d95e855a
hexbe137612a

51023143210 has 96 divisors (see below), whose sum is σ = 104946840000. Its totient is φ = 17802989568.

The previous prime is 51023143189. The next prime is 51023143211. The reversal of 51023143210 is 1234132015.

It is a happy number.

51023143210 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×510231432102 (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51023143211) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 14415621 + ... + 14419159.

It is an arithmetic number, because the mean of its divisors is an integer number (1093196250).

Almost surely, 251023143210 is an apocalyptic number.

51023143210 is an abundant number, since it is smaller than the sum of its proper divisors (53923696790).

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

51023143210 is a wasteful number, since it uses less digits than its factorization.

51023143210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4040 (or 4027 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

Adding to 51023143210 its reverse (1234132015), we get a palindrome (52257275225).

The spelling of 51023143210 in words is "fifty-one billion, twenty-three million, one hundred forty-three thousand, two hundred ten".

Divisors: 1 2 5 10 13 19 26 38 65 95 130 169 190 247 338 449 494 845 898 1235 1690 2245 2470 3211 3539 4490 5837 6422 7078 8531 11674 16055 17062 17695 29185 32110 35390 42655 46007 58370 67241 75881 85310 92014 110903 134482 151762 221806 230035 336205 379405 460070 554515 598091 672410 758810 874133 1109030 1196182 1441739 1589011 1748266 2883478 2990455 3178022 4370665 5980910 7208695 7945055 8741330 11363729 14417390 15890110 20657143 22727458 30191209 41314286 56818645 60382418 103285715 113637290 150956045 206571430 268542859 301912090 392485717 537085718 784971434 1342714295 1962428585 2685428590 3924857170 5102314321 10204628642 25511571605 51023143210