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3420879 = 371159251
BaseRepresentation
bin1101000011001011001111
320102210120020
431003023033
51333432004
6201153223
741035260
oct15031317
96383506
103420879
111a27180
12118b813
1392a0b7
14650967
154788d9
hex3432cf

3420879 has 32 divisors (see below), whose sum is σ = 5806080. Its totient is φ = 1740000.

The previous prime is 3420877. The next prime is 3420913. The reversal of 3420879 is 9780243.

It is not a de Polignac number, because 3420879 - 21 = 3420877 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3420871) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13504 + ... + 13754.

It is an arithmetic number, because the mean of its divisors is an integer number (181440).

Almost surely, 23420879 is an apocalyptic number.

3420879 is a deficient number, since it is larger than the sum of its proper divisors (2385201).

3420879 is a wasteful number, since it uses less digits than its factorization.

3420879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331.

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 3420879 is about 1849.5618400043. The cubic root of 3420879 is about 150.6766320929.

The spelling of 3420879 in words is "three million, four hundred twenty thousand, eight hundred seventy-nine".

Divisors: 1 3 7 11 21 33 59 77 177 231 251 413 649 753 1239 1757 1947 2761 4543 5271 8283 13629 14809 19327 44427 57981 103663 162899 310989 488697 1140293 3420879