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38213711020 = 2252357810643
BaseRepresentation
bin100011100101101101…
…101111010010101100
310122122011211122200101
4203211231233102230
51111230202223040
625315524240444
72521654120132
oct434555572254
9118564748611
1038213711020
111522a709761
1274a5840124
1337acc83234
141bc7263752
15ed9c8b09a
hex8e5b6f4ac

38213711020 has 24 divisors (see below), whose sum is σ = 80282939184. Its totient is φ = 15278980416.

The previous prime is 38213710957. The next prime is 38213711021. The reversal of 38213711020 is 2011731283.

It is a self number, because there is not a number n which added to its sum of digits gives 38213711020.

It is not an unprimeable number, because it can be changed into a prime (38213711021) 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, 358182 + ... + 452461.

It is an arithmetic number, because the mean of its divisors is an integer number (3345122466).

Almost surely, 238213711020 is an apocalyptic number.

It is an amenable number.

38213711020 is an abundant number, since it is smaller than the sum of its proper divisors (42069228164).

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

38213711020 is a wasteful number, since it uses less digits than its factorization.

38213711020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 813009 (or 813007 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 28.

The spelling of 38213711020 in words is "thirty-eight billion, two hundred thirteen million, seven hundred eleven thousand, twenty".

Divisors: 1 2 4 5 10 20 2357 4714 9428 11785 23570 47140 810643 1621286 3242572 4053215 8106430 16212860 1910685551 3821371102 7642742204 9553427755 19106855510 38213711020