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388040083 = 5311516361
BaseRepresentation
bin10111001000010…
…000010110010011
31000001011110220221
4113020100112103
51243314240313
6102301013511
712421200124
oct2710202623
91001143827
10388040083
1118a047292
12a9b54297
1362514922
143977004b
15240eec8d
hex17210593

388040083 has 8 divisors (see below), whose sum is σ = 395767296. Its totient is φ = 380328000.

The previous prime is 388040077. The next prime is 388040087. The reversal of 388040083 is 380040883.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2k-388040083 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (388040087) 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, 57823 + ... + 64183.

It is an arithmetic number, because the mean of its divisors is an integer number (49470912).

Almost surely, 2388040083 is an apocalyptic number.

388040083 is a deficient number, since it is larger than the sum of its proper divisors (7727213).

388040083 is a wasteful number, since it uses less digits than its factorization.

388040083 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7565.

The product of its (nonzero) digits is 18432, while the sum is 34.

The square root of 388040083 is about 19698.7330303246. The cubic root of 388040083 is about 729.3884181509.

The spelling of 388040083 in words is "three hundred eighty-eight million, forty thousand, eighty-three".

Divisors: 1 53 1151 6361 61003 337133 7321511 388040083