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115250240 = 2657232237
BaseRepresentation
bin1101101111010…
…01010001000000
322000212022121102
412313221101000
5214001001430
615234113532
72566416350
oct667512100
9260768542
10115250240
115a068236
123271b8a8
131ab53011
1411440b60
15a1b8345
hex6de9440

115250240 has 112 divisors (see below), whose sum is σ = 327428352. Its totient is φ = 37779456.

The previous prime is 115250189. The next prime is 115250269. The reversal of 115250240 is 42052511.

It is a tau number, because it is divible by the number of its divisors (112).

It is a Harshad number since it is a multiple of its sum of digits (20).

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, 50402 + ... + 52638.

Almost surely, 2115250240 is an apocalyptic number.

115250240 is a gapful number since it is divisible by the number (10) 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 115250240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (163714176).

115250240 is an abundant number, since it is smaller than the sum of its proper divisors (212178112).

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

115250240 is a wasteful number, since it uses less digits than its factorization.

115250240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2284 (or 2274 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 115250240 is about 10735.4664547005. The cubic root of 115250240 is about 486.6468831223.

The spelling of 115250240 in words is "one hundred fifteen million, two hundred fifty thousand, two hundred forty".

Divisors: 1 2 4 5 7 8 10 14 16 20 23 28 32 35 40 46 56 64 70 80 92 112 115 140 160 161 184 224 230 280 320 322 368 448 460 560 644 736 805 920 1120 1288 1472 1610 1840 2237 2240 2576 3220 3680 4474 5152 6440 7360 8948 10304 11185 12880 15659 17896 22370 25760 31318 35792 44740 51451 51520 62636 71584 78295 89480 102902 125272 143168 156590 178960 205804 250544 257255 313180 357920 360157 411608 501088 514510 626360 715840 720314 823216 1002176 1029020 1252720 1440628 1646432 1800785 2058040 2505440 2881256 3292864 3601570 4116080 5010880 5762512 7203140 8232160 11525024 14406280 16464320 23050048 28812560 57625120 115250240