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38643146106 = 2347579123663
BaseRepresentation
bin100011111111010011…
…111001110101111010
310200202002220012212120
4203333103321311322
51113120121133411
625430304422110
72535420215355
oct437723716572
9120662805776
1038643146106
1115430059694
1275a5617936
13384ac2c636
141c282cb29c
151012816106
hex8ff4f9d7a

38643146106 has 32 divisors (see below), whose sum is σ = 78947647488. Its totient is φ = 12604274160.

The previous prime is 38643146081. The next prime is 38643146111. The reversal of 38643146106 is 60164134683.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1621231 + ... + 1644893.

It is an arithmetic number, because the mean of its divisors is an integer number (2467113984).

Almost surely, 238643146106 is an apocalyptic number.

38643146106 is an abundant number, since it is smaller than the sum of its proper divisors (40304501382).

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

38643146106 is a wasteful number, since it uses less digits than its factorization.

38643146106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29506.

The product of its (nonzero) digits is 248832, while the sum is 42.

The spelling of 38643146106 in words is "thirty-eight billion, six hundred forty-three million, one hundred forty-six thousand, one hundred six".

Divisors: 1 2 3 6 47 94 141 282 5791 11582 17373 23663 34746 47326 70989 141978 272177 544354 816531 1112161 1633062 2224322 3336483 6672966 137032433 274064866 411097299 822194598 6440524351 12881048702 19321573053 38643146106