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38906484520 = 2352579377147
BaseRepresentation
bin100100001111000000…
…011101011100101000
310201102110102012021011
4210033000131130220
51114140030001040
625512352553304
72545065443011
oct441700353450
9121373365234
1038906484520
1115555772742
127659852834
133890662297
141c5127a008
15102a9d23ea
hex90f01d728

38906484520 has 32 divisors (see below), whose sum is σ = 87573765600. Its totient is φ = 15556518208.

The previous prime is 38906484503. The next prime is 38906484523. The reversal of 38906484520 is 2548460983.

It is not an unprimeable number, because it can be changed into a prime (38906484523) 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, 85414 + ... + 291733.

It is an arithmetic number, because the mean of its divisors is an integer number (2736680175).

Almost surely, 238906484520 is an apocalyptic number.

It is an amenable number.

38906484520 is an abundant number, since it is smaller than the sum of its proper divisors (48667281080).

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

38906484520 is a wasteful number, since it uses less digits than its factorization.

38906484520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 379737 (or 379733 counting only the distinct ones).

The product of its (nonzero) digits is 1658880, while the sum is 49.

The spelling of 38906484520 in words is "thirty-eight billion, nine hundred six million, four hundred eighty-four thousand, five hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 2579 5158 10316 12895 20632 25790 51580 103160 377147 754294 1508588 1885735 3017176 3771470 7542940 15085880 972662113 1945324226 3890648452 4863310565 7781296904 9726621130 19453242260 38906484520