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38888800020 = 223257231142231
BaseRepresentation
bin100100001101111100…
…111111111100010100
310201101020010201200200
4210031330333330110
51114121013100040
625510521540500
72544462226500
oct441574777424
9121336121620
1038888800020
1115546794054
127653944730
133889aaca95
141c4cb95300
15102918c630
hex90df3ff14

38888800020 has 216 divisors, whose sum is σ = 141649417728. Its totient is φ = 8602070400.

The previous prime is 38888799959. The next prime is 38888800021. The reversal of 38888800020 is 2000888883.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38888800021) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 202305 + ... + 344535.

Almost surely, 238888800020 is an apocalyptic number.

38888800020 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 38888800020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70824708864).

38888800020 is an abundant number, since it is smaller than the sum of its proper divisors (102760617708).

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

38888800020 is a wasteful number, since it uses less digits than its factorization.

38888800020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142291 (or 142279 counting only the distinct ones).

The product of its (nonzero) digits is 196608, while the sum is 45.

The spelling of 38888800020 in words is "thirty-eight billion, eight hundred eighty-eight million, eight hundred thousand, twenty".