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542412 = 2232131961
BaseRepresentation
bin10000100011011001100
31000120001100
42010123030
5114324122
615343100
74416243
oct2043314
91016040
10542412
11340582
12221a90
1315cb70
1410195a
15aaaac
hex846cc

542412 has 72 divisors (see below), whose sum is σ = 1579760. Its totient is φ = 155520.

The previous prime is 542401. The next prime is 542441. The reversal of 542412 is 214245.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a plaindrome in base 15.

It is a congruent number.

It is an unprimeable number.

542412 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8862 + ... + 8922.

2542412 is an apocalyptic number.

542412 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 542412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (789880).

542412 is an abundant number, since it is smaller than the sum of its proper divisors (1037348).

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

542412 is a wasteful number, since it uses less digits than its factorization.

542412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103 (or 98 counting only the distinct ones).

The product of its digits is 320, while the sum is 18.

The square root of 542412 is about 736.4862524175. The cubic root of 542412 is about 81.5535924125.

Adding to 542412 its reverse (214245), we get a palindrome (756657).

The spelling of 542412 in words is "five hundred forty-two thousand, four hundred twelve".

Divisors: 1 2 3 4 6 9 12 13 18 19 26 36 38 39 52 57 61 76 78 114 117 122 156 171 183 228 234 244 247 342 366 468 494 549 684 732 741 793 988 1098 1159 1482 1586 2196 2223 2318 2379 2964 3172 3477 4446 4636 4758 6954 7137 8892 9516 10431 13908 14274 15067 20862 28548 30134 41724 45201 60268 90402 135603 180804 271206 542412