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3128468019 = 37926774931
BaseRepresentation
bin1011101001111000…
…1010001000110011
322002000202122022220
42322132022020303
522401341434034
61234233532123
7140345353005
oct27236121063
98060678286
103128468019
111365a36366
12733874043
133ab1b4911
142196c8375
151349bd749
hexba78a233

3128468019 has 16 divisors (see below), whose sum is σ = 4226526720. Its totient is φ = 2058058080.

The previous prime is 3128468017. The next prime is 3128468039. The reversal of 3128468019 is 9108648213.

3128468019 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3128468019 - 21 = 3128468017 is a prime.

It is a super-2 number, since 2×31284680192 = 19574624291811568722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3128468011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 631984 + ... + 636914.

It is an arithmetic number, because the mean of its divisors is an integer number (264157920).

Almost surely, 23128468019 is an apocalyptic number.

3128468019 is a deficient number, since it is larger than the sum of its proper divisors (1098058701).

3128468019 is a wasteful number, since it uses less digits than its factorization.

3128468019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7690.

The product of its (nonzero) digits is 82944, while the sum is 42.

The square root of 3128468019 is about 55932.7097412596. The cubic root of 3128468019 is about 1462.5494984489.

The spelling of 3128468019 in words is "three billion, one hundred twenty-eight million, four hundred sixty-eight thousand, nineteen".

Divisors: 1 3 79 237 2677 4931 8031 14793 211483 389549 634449 1168647 13200287 39600861 1042822673 3128468019