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10390669818 = 233746804819
BaseRepresentation
bin10011010110101010…
…10000100111111010
3222211010212201100220
421223111100213322
5132240002413233
64435020040510
7515330144004
oct115325204772
928733781326
1010390669818
114452298031
12201b993136
13c97913049
14707db9374
1540c32beb3
hex26b5509fa

10390669818 has 16 divisors (see below), whose sum is σ = 21342997920. Its totient is φ = 3369946896.

The previous prime is 10390669813. The next prime is 10390669837. The reversal of 10390669818 is 81896609301.

It is not an unprimeable number, because it can be changed into a prime (10390669813) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23402188 + ... + 23402631.

It is an arithmetic number, because the mean of its divisors is an integer number (1333937370).

Almost surely, 210390669818 is an apocalyptic number.

10390669818 is an abundant number, since it is smaller than the sum of its proper divisors (10952328102).

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

10390669818 is a wasteful number, since it uses less digits than its factorization.

10390669818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46804861.

The product of its (nonzero) digits is 559872, while the sum is 51.

The spelling of 10390669818 in words is "ten billion, three hundred ninety million, six hundred sixty-nine thousand, eight hundred eighteen".

Divisors: 1 2 3 6 37 74 111 222 46804819 93609638 140414457 280828914 1731778303 3463556606 5195334909 10390669818