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254151040 = 27511132777
BaseRepresentation
bin11110010011000…
…00100110000000
3122201020012200111
433021200212000
51010030313130
641115201104
76204151063
oct1711404600
9581205614
10254151040
11120509490
1271146194
1340866c40
1425a7a8da
15174a402a
hexf260980

254151040 has 128 divisors (see below), whose sum is σ = 714057120. Its totient is φ = 85278720.

The previous prime is 254151031. The next prime is 254151061. The reversal of 254151040 is 40151452.

254151040 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (128).

It is a super-2 number, since 2×2541510402 = 129185502266163200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 90132 + ... + 92908.

Almost surely, 2254151040 is an apocalyptic number.

254151040 is a gapful number since it is divisible by the number (20) 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 254151040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (357028560).

254151040 is an abundant number, since it is smaller than the sum of its proper divisors (459906080).

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

254151040 is a wasteful number, since it uses less digits than its factorization.

254151040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2820 (or 2808 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 254151040 is about 15942.1152925200. The cubic root of 254151040 is about 633.4280584694.

The spelling of 254151040 in words is "two hundred fifty-four million, one hundred fifty-one thousand, forty".

Divisors: 1 2 4 5 8 10 11 13 16 20 22 26 32 40 44 52 55 64 65 80 88 104 110 128 130 143 160 176 208 220 260 286 320 352 416 440 520 572 640 704 715 832 880 1040 1144 1408 1430 1664 1760 2080 2288 2777 2860 3520 4160 4576 5554 5720 7040 8320 9152 11108 11440 13885 18304 22216 22880 27770 30547 36101 44432 45760 55540 61094 72202 88864 91520 111080 122188 144404 152735 177728 180505 222160 244376 288808 305470 355456 361010 397111 444320 488752 577616 610940 722020 794222 888640 977504 1155232 1221880 1444040 1588444 1777280 1955008 1985555 2310464 2443760 2888080 3176888 3910016 3971110 4620928 4887520 5776160 6353776 7942220 9775040 11552320 12707552 15884440 19550080 23104640 25415104 31768880 50830208 63537760 127075520 254151040