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38538711028 = 22195961140897
BaseRepresentation
bin100011111001000101…
…100000111111110100
310200110211101100212201
4203321011200333310
51112411402223103
625412054154244
72533011432046
oct437105407764
9120424340781
1038538711028
1115387109004
127576652984
1338323c522c
141c184a3a96
15100858751d
hex8f9160ff4

38538711028 has 48 divisors (see below), whose sum is σ = 73379678400. Its totient is φ = 17651450880.

The previous prime is 38538711007. The next prime is 38538711031. The reversal of 38538711028 is 82011783583.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 203076 + ... + 343972.

It is an arithmetic number, because the mean of its divisors is an integer number (1528743300).

Almost surely, 238538711028 is an apocalyptic number.

38538711028 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

It is an amenable number.

38538711028 is a deficient number, since it is larger than the sum of its proper divisors (34840967372).

38538711028 is a wasteful number, since it uses less digits than its factorization.

38538711028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141040 (or 141038 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 46.

The spelling of 38538711028 in words is "thirty-eight billion, five hundred thirty-eight million, seven hundred eleven thousand, twenty-eight".

Divisors: 1 2 4 19 38 59 61 76 118 122 236 244 1121 1159 2242 2318 3599 4484 4636 7198 14396 68381 136762 140897 273524 281794 563588 2677043 5354086 8312923 8594717 10708172 16625846 17189434 33251692 34378868 157945537 163299623 315891074 326599246 507088303 631782148 653198492 1014176606 2028353212 9634677757 19269355514 38538711028