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10255405240 = 2351086723593
BaseRepresentation
bin10011000110100010…
…10001000010111000
3222110201100120020201
421203101101002320
5132000340431430
64413344531544
7512065335433
oct114321210270
928421316221
1010255405240
1143929aa823
121ba2620bb4
13c758a3232
146d404881a
1540050d8ca
hex2634510b8

10255405240 has 32 divisors (see below), whose sum is σ = 23077763280. Its totient is φ = 4101610752.

The previous prime is 10255405231. The next prime is 10255405253. The reversal of 10255405240 is 4250455201.

It is a junction number, because it is equal to n+sod(n) for n = 10255405199 and 10255405208.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 422884 + ... + 446476.

Almost surely, 210255405240 is an apocalyptic number.

10255405240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10255405240 is an abundant number, since it is smaller than the sum of its proper divisors (12822358040).

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

10255405240 is a wasteful number, since it uses less digits than its factorization.

10255405240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34471 (or 34467 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 28.

The spelling of 10255405240 in words is "ten billion, two hundred fifty-five million, four hundred five thousand, two hundred forty".

Divisors: 1 2 4 5 8 10 20 40 10867 21734 23593 43468 47186 54335 86936 94372 108670 117965 188744 217340 235930 434680 471860 943720 256385131 512770262 1025540524 1281925655 2051081048 2563851310 5127702620 10255405240