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402402 = 237111367
BaseRepresentation
bin1100010001111100010
3202102222210
41202033202
5100334102
612342550
73264120
oct1421742
9672883
10402402
11255370
12174a56
13111210
14a6910
157e36c
hex623e2

402402 has 64 divisors (see below), whose sum is σ = 1096704. Its totient is φ = 95040.

The previous prime is 402383. The next prime is 402403. The reversal of 402402 is 204204.

It is not an unprimeable number, because it can be changed into a prime (402403) 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, 5973 + ... + 6039.

It is an arithmetic number, because the mean of its divisors is an integer number (17136).

2402402 is an apocalyptic number.

402402 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 402402, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (548352).

402402 is an abundant number, since it is smaller than the sum of its proper divisors (694302).

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

402402 is a wasteful number, since it uses less digits than its factorization.

402402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103.

The product of its (nonzero) digits is 64, while the sum is 12.

The square root of 402402 is about 634.3516375008. The cubic root of 402402 is about 73.8278198008.

Adding to 402402 its reverse (204204), we get a palindrome (606606).

It can be divided in two parts, 40 and 2402, that added together give a palindrome (2442).

The spelling of 402402 in words is "four hundred two thousand, four hundred two", and thus it is an iban number.

Divisors: 1 2 3 6 7 11 13 14 21 22 26 33 39 42 66 67 77 78 91 134 143 154 182 201 231 273 286 402 429 462 469 546 737 858 871 938 1001 1407 1474 1742 2002 2211 2613 2814 3003 4422 5159 5226 6006 6097 9581 10318 12194 15477 18291 19162 28743 30954 36582 57486 67067 134134 201201 402402