Search a number
-
+
154158144 = 2637234987
BaseRepresentation
bin10010011000001…
…00010001000000
3101202002001012220
421030010101000
5303431030034
623144051040
73551215440
oct1114042100
9352061186
10154158144
117a022328
1243763a80
1325c2674a
141668c120
15d801749
hex9304440

154158144 has 112 divisors (see below), whose sum is σ = 486509568. Its totient is φ = 42121728.

The previous prime is 154158097. The next prime is 154158149. The reversal of 154158144 is 441851451.

It is a tau number, because it is divible by the number of its divisors (112).

It is not an unprimeable number, because it can be changed into a prime (154158149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28419 + ... + 33405.

Almost surely, 2154158144 is an apocalyptic number.

154158144 is a gapful number since it is divisible by the number (14) 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 154158144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (243254784).

154158144 is an abundant number, since it is smaller than the sum of its proper divisors (332351424).

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

154158144 is a wasteful number, since it uses less digits than its factorization.

154158144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5032 (or 5022 counting only the distinct ones).

The product of its digits is 12800, while the sum is 33.

The square root of 154158144 is about 12416.0438143557. The cubic root of 154158144 is about 536.1942564624.

It can be divided in two parts, 1541 and 58144, that added together give a triangular number (59685 = T345).

The spelling of 154158144 in words is "one hundred fifty-four million, one hundred fifty-eight thousand, one hundred forty-four".

Divisors: 1 2 3 4 6 7 8 12 14 16 21 23 24 28 32 42 46 48 56 64 69 84 92 96 112 138 161 168 184 192 224 276 322 336 368 448 483 552 644 672 736 966 1104 1288 1344 1472 1932 2208 2576 3864 4416 4987 5152 7728 9974 10304 14961 15456 19948 29922 30912 34909 39896 59844 69818 79792 104727 114701 119688 139636 159584 209454 229402 239376 279272 319168 344103 418908 458804 478752 558544 688206 802907 837816 917608 957504 1117088 1376412 1605814 1675632 1835216 2234176 2408721 2752824 3211628 3351264 3670432 4817442 5505648 6423256 6702528 7340864 9634884 11011296 12846512 19269768 22022592 25693024 38539536 51386048 77079072 154158144