Search a number
-
+
154215126 = 232131738767
BaseRepresentation
bin10010011000100…
…10001011010110
3101202011221101100
421030102023112
5303434341001
623145210530
73551543532
oct1114221326
9352157340
10154215126
117a06111a
1243790a46
1325c46670
14166a4bc2
15d813586
hex93122d6

154215126 has 48 divisors (see below), whose sum is σ = 381011904. Its totient is φ = 44658432.

The previous prime is 154215121. The next prime is 154215133. The reversal of 154215126 is 621512451.

It is a self number, because there is not a number n which added to its sum of digits gives 154215126.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (154215121) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15406 + ... + 23361.

It is an arithmetic number, because the mean of its divisors is an integer number (7937748).

Almost surely, 2154215126 is an apocalyptic number.

154215126 is an abundant number, since it is smaller than the sum of its proper divisors (226796778).

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

154215126 is a wasteful number, since it uses less digits than its factorization.

154215126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38805 (or 38802 counting only the distinct ones).

The product of its digits is 2400, while the sum is 27.

The square root of 154215126 is about 12418.3382946351. The cubic root of 154215126 is about 536.2603134274.

Adding to 154215126 its reverse (621512451), we get a palindrome (775727577).

The spelling of 154215126 in words is "one hundred fifty-four million, two hundred fifteen thousand, one hundred twenty-six".

Divisors: 1 2 3 6 9 13 17 18 26 34 39 51 78 102 117 153 221 234 306 442 663 1326 1989 3978 38767 77534 116301 232602 348903 503971 659039 697806 1007942 1318078 1511913 1977117 3023826 3954234 4535739 5931351 8567507 9071478 11862702 17135014 25702521 51405042 77107563 154215126