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38358648906 = 2313746665023
BaseRepresentation
bin100011101110010110…
…101000100001001010
310200000021120021002020
4203232112220201022
51112024303231111
625342142545310
72525364064434
oct435626504112
9120007507066
1038358648906
11152a4503736
127526298236
133803ccbcb6
141bdc5d1654
15ee786a906
hex8ee5a884a

38358648906 has 16 divisors (see below), whose sum is σ = 77277279744. Its totient is φ = 12692885984.

The previous prime is 38358648863. The next prime is 38358648943. The reversal of 38358648906 is 60984685383.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 38358648906.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23331690 + ... + 23333333.

It is an arithmetic number, because the mean of its divisors is an integer number (4829829984).

Almost surely, 238358648906 is an apocalyptic number.

38358648906 is an abundant number, since it is smaller than the sum of its proper divisors (38918630838).

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

38358648906 is a wasteful number, since it uses less digits than its factorization.

38358648906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46665165.

The product of its (nonzero) digits is 29859840, while the sum is 60.

The spelling of 38358648906 in words is "thirty-eight billion, three hundred fifty-eight million, six hundred forty-eight thousand, nine hundred six".

Divisors: 1 2 3 6 137 274 411 822 46665023 93330046 139995069 279990138 6393108151 12786216302 19179324453 38358648906