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3985388030 = 2513172374761
BaseRepresentation
bin1110110110001100…
…0011000111111110
3101021202012200121002
43231203003013332
531130224404110
61455244410302
7200522145041
oct35543030776
911252180532
103985388030
111765714018
12932846992
134b68a6890
1429b42cc58
15184d3aaa5
hexed8c31fe

3985388030 has 192 divisors, whose sum is σ = 8748940032. Its totient is φ = 1297244160.

The previous prime is 3985388021. The next prime is 3985388039. The reversal of 3985388030 is 308835893.

It is an interprime number because it is at equal distance from previous prime (3985388021) and next prime (3985388039).

It is a hoax number, since the sum of its digits (47) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3985388039) by changing a digit.

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 95 ways as a sum of consecutive naturals, for example, 65334200 + ... + 65334260.

It is an arithmetic number, because the mean of its divisors is an integer number (45567396).

Almost surely, 23985388030 is an apocalyptic number.

3985388030 is an abundant number, since it is smaller than the sum of its proper divisors (4763552002).

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

3985388030 is a wasteful number, since it uses less digits than its factorization.

3985388030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199 (or 182 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 47.

The square root of 3985388030 is about 63129.9297480997. The cubic root of 3985388030 is about 1585.4657721517.

The spelling of 3985388030 in words is "three billion, nine hundred eighty-five million, three hundred eighty-eight thousand, thirty".