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51102404210 = 25111322748919
BaseRepresentation
bin101111100101111100…
…001100111001110010
311212220102012002220102
4233211330030321302
51314124203413320
635250501512402
73456236161124
oct574574147162
9155812162812
1051102404210
111a743a7a710
129aa2112702
134a85282b00
14268acd7214
1514e1553175
hexbe5f0ce72

51102404210 has 48 divisors (see below), whose sum is σ = 108659309760. Its totient is φ = 17153248320.

The previous prime is 51102404189. The next prime is 51102404231. The reversal of 51102404210 is 1240420115.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (51102404189) and next prime (51102404231).

It is a super-2 number, since 2×511024042102 (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1355870 + ... + 1393049.

It is an arithmetic number, because the mean of its divisors is an integer number (2263735620).

Almost surely, 251102404210 is an apocalyptic number.

51102404210 is an abundant number, since it is smaller than the sum of its proper divisors (57556905550).

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

51102404210 is a wasteful number, since it uses less digits than its factorization.

51102404210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2748963 (or 2748950 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 20.

Adding to 51102404210 its reverse (1240420115), we get a palindrome (52342824325).

The spelling of 51102404210 in words is "fifty-one billion, one hundred two million, four hundred four thousand, two hundred ten".

Divisors: 1 2 5 10 11 13 22 26 55 65 110 130 143 169 286 338 715 845 1430 1690 1859 3718 9295 18590 2748919 5497838 13744595 27489190 30238109 35735947 60476218 71471894 151190545 178679735 302381090 357359470 393095417 464567311 786190834 929134622 1965477085 2322836555 3930954170 4645673110 5110240421 10220480842 25551202105 51102404210