Search a number
-
+
2401257144 = 23311134571531
BaseRepresentation
bin1000111100100000…
…0100011010111000
320012100101111112210
42033020010122320
514404210212034
61034135135120
7113335230456
oct21710043270
96170344483
102401257144
1110224a1040
125702144a0
132c3638c20
1418aca99d6
15e0c238e9
hex8f2046b8

2401257144 has 128 divisors (see below), whose sum is σ = 7072692480. Its totient is φ = 669772800.

The previous prime is 2401257143. The next prime is 2401257161. The reversal of 2401257144 is 4417521042.

It is a super-2 number, since 2×24012571442 = 11532071743222073472, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2401257143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1567659 + ... + 1569189.

It is an arithmetic number, because the mean of its divisors is an integer number (55255410).

Almost surely, 22401257144 is an apocalyptic number.

2401257144 is a gapful number since it is divisible by the number (24) 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 2401257144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3536346240).

2401257144 is an abundant number, since it is smaller than the sum of its proper divisors (4671435336).

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

2401257144 is a wasteful number, since it uses less digits than its factorization.

2401257144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2021 (or 2017 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 30.

The square root of 2401257144 is about 49002.6238481165. The cubic root of 2401257144 is about 1339.0996298082.

Adding to 2401257144 its reverse (4417521042), we get a palindrome (6818778186).

The spelling of 2401257144 in words is "two billion, four hundred one million, two hundred fifty-seven thousand, one hundred forty-four".

Divisors: 1 2 3 4 6 8 11 12 13 22 24 26 33 39 44 52 66 78 88 104 132 143 156 264 286 312 429 457 572 858 914 1144 1371 1531 1716 1828 2742 3062 3432 3656 4593 5027 5484 5941 6124 9186 10054 10968 11882 12248 15081 16841 17823 18372 19903 20108 23764 30162 33682 35646 36744 39806 40216 47528 50523 59709 60324 65351 67364 71292 79612 101046 119418 120648 130702 134728 142584 159224 196053 202092 218933 238836 261404 392106 404184 437866 477672 522808 656799 699667 784212 875732 1313598 1399334 1568424 1751464 2099001 2627196 2798668 4198002 5254392 5597336 7696337 8396004 9095671 15392674 16792008 18191342 23089011 27287013 30785348 36382684 46178022 54574026 61570696 72765368 92356044 100052381 109148052 184712088 200104762 218296104 300157143 400209524 600314286 800419048 1200628572 2401257144