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38100034447 = 148725622081
BaseRepresentation
bin100011011110111100…
…000110001110001111
310122100020221021201221
4203132330012032033
51111012102100242
625300343544211
72516103643426
oct433674061617
9118306837657
1038100034447
1115181526882
12747375b067
1337925615a7
141bb61122bd
15ececd4167
hex8def0638f

38100034447 has 4 divisors (see below), whose sum is σ = 38125658016. Its totient is φ = 38074410880.

The previous prime is 38100034433. The next prime is 38100034481. The reversal of 38100034447 is 74443000183.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 38100034447 - 215 = 38100001679 is a prime.

It is a super-2 number, since 2×381000344472 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38100034547) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12809554 + ... + 12812527.

It is an arithmetic number, because the mean of its divisors is an integer number (9531414504).

Almost surely, 238100034447 is an apocalyptic number.

38100034447 is a deficient number, since it is larger than the sum of its proper divisors (25623569).

38100034447 is a wasteful number, since it uses less digits than its factorization.

38100034447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25623568.

The product of its (nonzero) digits is 32256, while the sum is 34.

The spelling of 38100034447 in words is "thirty-eight billion, one hundred million, thirty-four thousand, four hundred forty-seven".

Divisors: 1 1487 25622081 38100034447