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51035060650 = 2527220830637
BaseRepresentation
bin101111100001111011…
…010011100110101010
311212201201110200220111
4233201323103212222
51314004433420100
635240054244534
73454460600200
oct574173234652
9155651420814
1051035060650
111a709a63482
129a8365674a
134a74334452
142681da7070
1514da69e6ba
hexbe1ed39aa

51035060650 has 36 divisors (see below), whose sum is σ = 110423212038. Its totient is φ = 17497734240.

The previous prime is 51035060639. The next prime is 51035060651. The reversal of 51035060650 is 5606053015.

It can be written as a sum of positive squares in 3 ways, for example, as 45048789009 + 5986271641 = 212247^2 + 77371^2 .

It is not an unprimeable number, because it can be changed into a prime (51035060651) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 10412869 + ... + 10417768.

Almost surely, 251035060650 is an apocalyptic number.

51035060650 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

51035060650 is an abundant number, since it is smaller than the sum of its proper divisors (59388151388).

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

51035060650 is a wasteful number, since it uses less digits than its factorization.

51035060650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20830663 (or 20830651 counting only the distinct ones).

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

The spelling of 51035060650 in words is "fifty-one billion, thirty-five million, sixty thousand, six hundred fifty".

Divisors: 1 2 5 7 10 14 25 35 49 50 70 98 175 245 350 490 1225 2450 20830637 41661274 104153185 145814459 208306370 291628918 520765925 729072295 1020701213 1041531850 1458144590 2041402426 3645361475 5103506065 7290722950 10207012130 25517530325 51035060650