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4290831949 = 26189163841
BaseRepresentation
bin1111111111000000…
…1110011001001101
3102002000221211212211
43333300032121031
532241423110244
61545435230421
7211221320065
oct37760163115
912060854784
104290831949
111902076608
129b8ba8411
13534c5c521
142c9c1c3a5
151a1a72934
hexffc0e64d

4290831949 has 4 divisors (see below), whose sum is σ = 4291021980. Its totient is φ = 4290641920.

The previous prime is 4290831913. The next prime is 4290832009. The reversal of 4290831949 is 9491380924.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3963583849 + 327248100 = 62957^2 + 18090^2 .

It is a cyclic number.

It is not a de Polignac number, because 4290831949 - 29 = 4290831437 is a prime.

It is a super-2 number, since 2×42908319492 = 36822477629118277202, which contains 22 as substring.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4290831049) 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 3 ways as a sum of consecutive naturals, for example, 55732 + ... + 108109.

It is an arithmetic number, because the mean of its divisors is an integer number (1072755495).

Almost surely, 24290831949 is an apocalyptic number.

It is an amenable number.

4290831949 is a deficient number, since it is larger than the sum of its proper divisors (190031).

4290831949 is a wasteful number, since it uses less digits than its factorization.

4290831949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190030.

The product of its (nonzero) digits is 559872, while the sum is 49.

The square root of 4290831949 is about 65504.4422081434. The cubic root of 4290831949 is about 1624.9768137441.

The spelling of 4290831949 in words is "four billion, two hundred ninety million, eight hundred thirty-one thousand, nine hundred forty-nine".

Divisors: 1 26189 163841 4290831949