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3144979239 = 31048326413
BaseRepresentation
bin1011101101110100…
…1001001100100111
322010011211111110120
42323131021030213
522420103313424
61240023453023
7140635611453
oct27335111447
98104744416
103144979239
1113742934a6
127392b7173
133b174607c
1421b985663
15136180a79
hexbb749327

3144979239 has 4 divisors (see below), whose sum is σ = 4193305656. Its totient is φ = 2096652824.

The previous prime is 3144979217. The next prime is 3144979273. The reversal of 3144979239 is 9329794413.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9329794413 = 33109931471.

It is a cyclic number.

It is not a de Polignac number, because 3144979239 - 28 = 3144978983 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3144979191 and 3144979200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3144979139) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 524163204 + ... + 524163209.

It is an arithmetic number, because the mean of its divisors is an integer number (1048326414).

Almost surely, 23144979239 is an apocalyptic number.

3144979239 is a deficient number, since it is larger than the sum of its proper divisors (1048326417).

3144979239 is a wasteful number, since it uses less digits than its factorization.

3144979239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1048326416.

The product of its digits is 1469664, while the sum is 51.

The square root of 3144979239 is about 56080.1144702826. The cubic root of 3144979239 is about 1465.1179672582.

The spelling of 3144979239 in words is "three billion, one hundred forty-four million, nine hundred seventy-nine thousand, two hundred thirty-nine".

Divisors: 1 3 1048326413 3144979239