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3985047023 = 19977972713
BaseRepresentation
bin1110110110000110…
…1111110111101111
3101021201120100211012
43231201233313233
531130133001043
61455233215435
7200516224616
oct35541576757
911251510735
103985047023
1117655008a1
1293270157b
134b67b75b9
1429b38087d
15184cbea18
hexed86fdef

3985047023 has 16 divisors (see below), whose sum is σ = 4244913120. Its totient is φ = 3730323456.

The previous prime is 3985047013. The next prime is 3985047049. The reversal of 3985047023 is 3207405893.

It is a cyclic number.

It is not a de Polignac number, because 3985047023 - 224 = 3968269807 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3985047013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1467515 + ... + 1470227.

It is an arithmetic number, because the mean of its divisors is an integer number (265307070).

Almost surely, 23985047023 is an apocalyptic number.

3985047023 is a deficient number, since it is larger than the sum of its proper divisors (259866097).

3985047023 is a wasteful number, since it uses less digits than its factorization.

3985047023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3626.

The product of its (nonzero) digits is 181440, while the sum is 41.

The square root of 3985047023 is about 63127.2288557006. The cubic root of 3985047023 is about 1585.4205510973.

The spelling of 3985047023 in words is "three billion, nine hundred eighty-five million, forty-seven thousand, twenty-three".

Divisors: 1 19 97 797 1843 2713 15143 51547 77309 263161 1468871 2162261 5000059 41082959 209739317 3985047023