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103214144 = 2611271541
BaseRepresentation
bin1100010011011…
…10110001000000
321012012211012002
412021232301000
5202410323034
614124123132
72362206605
oct611566100
9235184162
10103214144
1153297350
122a6964a8
13184ca777
14d9ca6ac
1590dbe7e
hex626ec40

103214144 has 56 divisors (see below), whose sum is σ = 224674176. Its totient is φ = 46656000.

The previous prime is 103214143. The next prime is 103214149. The reversal of 103214144 is 441412301.

It is not an unprimeable number, because it can be changed into a prime (103214141) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 190514 + ... + 191054.

Almost surely, 2103214144 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 103214144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (112337088).

103214144 is an abundant number, since it is smaller than the sum of its proper divisors (121460032).

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

103214144 is a wasteful number, since it uses less digits than its factorization.

103214144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 835 (or 825 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 103214144 is about 10159.4362048295. The cubic root of 103214144 is about 469.0794475970.

Adding to 103214144 its reverse (441412301), we get a palindrome (544626445).

The spelling of 103214144 in words is "one hundred three million, two hundred fourteen thousand, one hundred forty-four".

Divisors: 1 2 4 8 11 16 22 32 44 64 88 176 271 352 541 542 704 1082 1084 2164 2168 2981 4328 4336 5951 5962 8656 8672 11902 11924 17312 17344 23804 23848 34624 47608 47696 95216 95392 146611 190432 190784 293222 380864 586444 1172888 1612721 2345776 3225442 4691552 6450884 9383104 12901768 25803536 51607072 103214144