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1451230144 = 26713249181
BaseRepresentation
bin101011010000000…
…0000001111000000
310202010202010111121
41112200000033000
510433003331034
6400000522024
750651152450
oct12640001700
93663663447
101451230144
116851aa761
12346020314
131a1877a80
14daa49d60
15876141b4
hex568003c0

1451230144 has 56 divisors (see below), whose sum is σ = 3544364768. Its totient is φ = 574110720.

The previous prime is 1451230133. The next prime is 1451230159. The reversal of 1451230144 is 4410321541.

It is a tau number, because it is divible by the number of its divisors (56).

It is a zygodrome in base 4.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 118767 + ... + 130414.

It is an arithmetic number, because the mean of its divisors is an integer number (63292228).

Almost surely, 21451230144 is an apocalyptic number.

1451230144 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1451230144 is an abundant number, since it is smaller than the sum of its proper divisors (2093134624).

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

1451230144 is a wasteful number, since it uses less digits than its factorization.

1451230144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249213 (or 249203 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 1451230144 is about 38095.0146869640. The cubic root of 1451230144 is about 1132.1711836413.

Adding to 1451230144 its reverse (4410321541), we get a palindrome (5861551685).

The spelling of 1451230144 in words is "one billion, four hundred fifty-one million, two hundred thirty thousand, one hundred forty-four".

Divisors: 1 2 4 7 8 13 14 16 26 28 32 52 56 64 91 104 112 182 208 224 364 416 448 728 832 1456 2912 5824 249181 498362 996724 1744267 1993448 3239353 3488534 3986896 6478706 6977068 7973792 12957412 13954136 15947584 22675471 25914824 27908272 45350942 51829648 55816544 90701884 103659296 111633088 181403768 207318592 362807536 725615072 1451230144