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124742 = 297643
BaseRepresentation
bin11110011101000110
320100010002
4132131012
512442432
62401302
71026452
oct363506
9210102
10124742
11857a2
1260232
1344a17
1433662
1526e62
hex1e746

124742 has 8 divisors (see below), whose sum is σ = 189336. Its totient is φ = 61632.

The previous prime is 124739. The next prime is 124753. The reversal of 124742 is 247421.

124742 is nontrivially palindromic in base 15.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 128 + ... + 515.

It is an arithmetic number, because the mean of its divisors is an integer number (23667).

2124742 is an apocalyptic number.

124742 is a deficient number, since it is larger than the sum of its proper divisors (64594).

124742 is an equidigital number, since it uses as much as digits as its factorization.

124742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 742.

The product of its digits is 448, while the sum is 20.

The square root of 124742 is about 353.1883350282. The cubic root of 124742 is about 49.9655763056.

The spelling of 124742 in words is "one hundred twenty-four thousand, seven hundred forty-two", and thus it is an iban number.

Divisors: 1 2 97 194 643 1286 62371 124742