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1342879 = 1399661
BaseRepresentation
bin101000111110110011111
32112020002021
411013312133
5320433004
644441011
714262046
oct5076637
92466067
101342879
11837a1a
12549167
13380305
1426d55d
151b7d54
hex147d9f

1342879 has 4 divisors (see below), whose sum is σ = 1352680. Its totient is φ = 1333080.

The previous prime is 1342877. The next prime is 1342883. The reversal of 1342879 is 9782431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9782431 = 24140591.

It is a cyclic number.

It is not a de Polignac number, because 1342879 - 21 = 1342877 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1342871) 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, 4692 + ... + 4969.

It is an arithmetic number, because the mean of its divisors is an integer number (338170).

It is the magic constant of a 139 × 139 magic square.

21342879 is an apocalyptic number.

1342879 is a deficient number, since it is larger than the sum of its proper divisors (9801).

1342879 is an equidigital number, since it uses as much as digits as its factorization.

1342879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9800.

The product of its digits is 12096, while the sum is 34.

The square root of 1342879 is about 1158.8265616562. The cubic root of 1342879 is about 110.3262764375.

The spelling of 1342879 in words is "one million, three hundred forty-two thousand, eight hundred seventy-nine".

Divisors: 1 139 9661 1342879