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707742 = 232741137
BaseRepresentation
bin10101100110010011110
31022221211200
42230302132
5140121432
623100330
76005250
oct2546236
91287750
10707742
11443812
122a16a6
131ba1a9
14145cd0
15dea7c
hexacc9e

707742 has 48 divisors (see below), whose sum is σ = 1808352. Its totient is φ = 195840.

The previous prime is 707723. The next prime is 707747. The reversal of 707742 is 247707.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (707747) by changing a digit.

707742 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5098 + ... + 5234.

It is an arithmetic number, because the mean of its divisors is an integer number (37674).

2707742 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 707742, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (904176).

707742 is an abundant number, since it is smaller than the sum of its proper divisors (1100610).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

707742 is a wasteful number, since it uses less digits than its factorization.

707742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193 (or 190 counting only the distinct ones).

The product of its (nonzero) digits is 2744, while the sum is 27.

The square root of 707742 is about 841.2740338320. The cubic root of 707742 is about 89.1165413480.

The spelling of 707742 in words is "seven hundred seven thousand, seven hundred forty-two", and thus it is an iban number.

Divisors: 1 2 3 6 7 9 14 18 21 41 42 63 82 123 126 137 246 274 287 369 411 574 738 822 861 959 1233 1722 1918 2466 2583 2877 5166 5617 5754 8631 11234 16851 17262 33702 39319 50553 78638 101106 117957 235914 353871 707742