Search a number
-
+
42279837 = 347299857
BaseRepresentation
bin1010000101001…
…0001110011101
32221120001000220
42201102032131
541310423322
64110111553
71022241555
oct241221635
987501026
1042279837
1121958516
12121ab5b9
1389b4472
145888165
153aa255c
hex285239d

42279837 has 8 divisors (see below), whose sum is σ = 57572736. Its totient is φ = 27586752.

The previous prime is 42279803. The next prime is 42279847. The reversal of 42279837 is 73897224.

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

It is not a de Polignac number, because 42279837 - 215 = 42247069 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42279847) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 149788 + ... + 150069.

It is an arithmetic number, because the mean of its divisors is an integer number (7196592).

Almost surely, 242279837 is an apocalyptic number.

42279837 is a gapful number since it is divisible by the number (47) formed by its first and last digit.

It is an amenable number.

42279837 is a deficient number, since it is larger than the sum of its proper divisors (15292899).

42279837 is a wasteful number, since it uses less digits than its factorization.

42279837 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 299907.

The product of its digits is 169344, while the sum is 42.

The square root of 42279837 is about 6502.2947487791. The cubic root of 42279837 is about 348.3729569378.

The spelling of 42279837 in words is "forty-two million, two hundred seventy-nine thousand, eight hundred thirty-seven".

Divisors: 1 3 47 141 299857 899571 14093279 42279837