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38280608688 = 2437216275769
BaseRepresentation
bin100011101001101100…
…111011101110110000
310122210211201102000210
4203221230323232300
51111344313434223
625330314144120
72523425543100
oct435154735660
9118724642023
1038280608688
1115264450993
127504122040
1337c0aa695a
141bd20b9200
15ee0aa2893
hex8e9b3bbb0

38280608688 has 60 divisors (see below), whose sum is σ = 115037142360. Its totient is φ = 10937316096.

The previous prime is 38280608669. The next prime is 38280608689. The reversal of 38280608688 is 88680608283.

It is not an unprimeable number, because it can be changed into a prime (38280608689) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8135533 + ... + 8140236.

It is an arithmetic number, because the mean of its divisors is an integer number (1917285706).

Almost surely, 238280608688 is an apocalyptic number.

It is an amenable number.

38280608688 is an abundant number, since it is smaller than the sum of its proper divisors (76756533672).

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

38280608688 is a wasteful number, since it uses less digits than its factorization.

38280608688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16275794 (or 16275781 counting only the distinct ones).

The product of its (nonzero) digits is 7077888, while the sum is 57.

The spelling of 38280608688 in words is "thirty-eight billion, two hundred eighty million, six hundred eight thousand, six hundred eighty-eight".

Divisors: 1 2 3 4 6 7 8 12 14 16 21 24 28 42 48 49 56 84 98 112 147 168 196 294 336 392 588 784 1176 2352 16275769 32551538 48827307 65103076 97654614 113930383 130206152 195309228 227860766 260412304 341791149 390618456 455721532 683582298 781236912 797512681 911443064 1367164596 1595025362 1822886128 2392538043 2734329192 3190050724 4785076086 5468658384 6380101448 9570152172 12760202896 19140304344 38280608688