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260406432 = 253211136323
BaseRepresentation
bin11111000010101…
…11110010100000
3200011000000110200
433201113302200
51013131001212
641501225200
76311263266
oct1741276240
9604000420
10260406432
11123aa1230
1273262200
1341c47260
1426828436
1517cdc6dc
hexf857ca0

260406432 has 144 divisors (see below), whose sum is σ = 870131808. Its totient is φ = 72829440.

The previous prime is 260406431. The next prime is 260406439. The reversal of 260406432 is 234604062.

260406432 is digitally balanced in base 2, 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 (144).

It is a junction number, because it is equal to n+sod(n) for n = 260406396 and 260406405.

It is not an unprimeable number, because it can be changed into a prime (260406431) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 38023 + ... + 44345.

It is an arithmetic number, because the mean of its divisors is an integer number (6042582).

Almost surely, 2260406432 is an apocalyptic number.

260406432 is a gapful number since it is divisible by the number (22) 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 260406432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (435065904).

260406432 is an abundant number, since it is smaller than the sum of its proper divisors (609725376).

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

260406432 is a wasteful number, since it uses less digits than its factorization.

260406432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6363 (or 6352 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

The square root of 260406432 is about 16137.1134965334. The cubic root of 260406432 is about 638.5828277687.

The spelling of 260406432 in words is "two hundred sixty million, four hundred six thousand, four hundred thirty-two".

Divisors: 1 2 3 4 6 8 9 11 12 13 16 18 22 24 26 32 33 36 39 44 48 52 66 72 78 88 96 99 104 117 132 143 144 156 176 198 208 234 264 286 288 312 352 396 416 429 468 528 572 624 792 858 936 1056 1144 1248 1287 1584 1716 1872 2288 2574 3168 3432 3744 4576 5148 6323 6864 10296 12646 13728 18969 20592 25292 37938 41184 50584 56907 69553 75876 82199 101168 113814 139106 151752 164398 202336 208659 227628 246597 278212 303504 328796 417318 455256 493194 556424 607008 625977 657592 739791 834636 904189 910512 986388 1112848 1251954 1315184 1479582 1669272 1808378 1821024 1972776 2225696 2503908 2630368 2712567 2959164 3338544 3616756 3945552 5007816 5425134 5918328 6677088 7233512 7891104 8137701 10015632 10850268 11836656 14467024 16275402 20031264 21700536 23673312 28934048 32550804 43401072 65101608 86802144 130203216 260406432