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38631380000 = 25541931569
BaseRepresentation
bin100011111110100111…
…000001010000100000
310200201021202102210212
4203332213001100200
51113104113130000
625425204313252
72535215212013
oct437647012040
9120637672725
1038631380000
1115424452634
1275a16a2828
13384866cc45
141c2690737a
15101178ec35
hex8fe9c1420

38631380000 has 60 divisors (see below), whose sum is σ = 95039038710. Its totient is φ = 15452544000.

The previous prime is 38631379973. The next prime is 38631380017. The reversal of 38631380000 is 8313683.

It is a happy number.

It can be written as a sum of positive squares in 5 ways, for example, as 194993296 + 38436386704 = 13964^2 + 196052^2 .

It is a Harshad number since it is a multiple of its sum of digits (32).

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 945785 + ... + 985784.

Almost surely, 238631380000 is an apocalyptic number.

It is an amenable number.

38631380000 is an abundant number, since it is smaller than the sum of its proper divisors (56407658710).

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

38631380000 is an equidigital number, since it uses as much as digits as its factorization.

38631380000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1931599 (or 1931576 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 32.

Adding to 38631380000 its reverse (8313683), we get a palindrome (38639693683).

The spelling of 38631380000 in words is "thirty-eight billion, six hundred thirty-one million, three hundred eighty thousand".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 80 100 125 160 200 250 400 500 625 800 1000 1250 2000 2500 4000 5000 10000 20000 1931569 3863138 7726276 9657845 15452552 19315690 30905104 38631380 48289225 61810208 77262760 96578450 154525520 193156900 241446125 309051040 386313800 482892250 772627600 965784500 1207230625 1545255200 1931569000 2414461250 3863138000 4828922500 7726276000 9657845000 19315690000 38631380000