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254401063140 = 223571735630401
BaseRepresentation
bin1110110011101101111…
…1000010100011100100
3220022122122111000202210
43230323133002203210
513132003133010030
6312511545403420
724244203233430
oct3547337024344
9808578430683
10254401063140
119898884a114
124137a499570
131acb3b04a73
14c4551259c0
15693e3b2bb0
hex3b3b7c28e4

254401063140 has 96 divisors (see below), whose sum is σ = 861970685184. Its totient is φ = 54728294400.

The previous prime is 254401063061. The next prime is 254401063151. The reversal of 254401063140 is 41360104452.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 254401063098 and 254401063107.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17808061 + ... + 17822340.

It is an arithmetic number, because the mean of its divisors is an integer number (8978861304).

Almost surely, 2254401063140 is an apocalyptic number.

254401063140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

254401063140 is an abundant number, since it is smaller than the sum of its proper divisors (607569622044).

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

254401063140 is a wasteful number, since it uses less digits than its factorization.

254401063140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35630437 (or 35630435 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

Adding to 254401063140 its reverse (41360104452), we get a palindrome (295761167592).

The spelling of 254401063140 in words is "two hundred fifty-four billion, four hundred one million, sixty-three thousand, one hundred forty".

Divisors: 1 2 3 4 5 6 7 10 12 14 15 17 20 21 28 30 34 35 42 51 60 68 70 84 85 102 105 119 140 170 204 210 238 255 340 357 420 476 510 595 714 1020 1190 1428 1785 2380 3570 7140 35630401 71260802 106891203 142521604 178152005 213782406 249412807 356304010 427564812 498825614 534456015 605716817 712608020 748238421 997651228 1068912030 1211433634 1247064035 1496476842 1817150451 2137824060 2422867268 2494128070 2992953684 3028584085 3634300902 3741192105 4240017719 4988256140 6057168170 7268601804 7482384210 8480035438 9085752255 12114336340 12720053157 14964768420 16960070876 18171504510 21200088595 25440106314 36343009020 42400177190 50880212628 63600265785 84800354380 127200531570 254401063140