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115020080 = 2457293701
BaseRepresentation
bin1101101101100…
…01000100110000
322000102121212222
412312301010300
5213421120310
615225140212
72564440340
oct666610460
9260377788
10115020080
1159a2031a
123262a668
131aaa2326
14113c0d20
15a170055
hex6db1130

115020080 has 80 divisors (see below), whose sum is σ = 307105344. Its totient is φ = 39244800.

The previous prime is 115020067. The next prime is 115020083. The reversal of 115020080 is 80020511.

It is a tau number, because it is divible by the number of its divisors (80).

It is not an unprimeable number, because it can be changed into a prime (115020083) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 163730 + ... + 164430.

Almost surely, 2115020080 is an apocalyptic number.

115020080 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 115020080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (153552672).

115020080 is an abundant number, since it is smaller than the sum of its proper divisors (192085264).

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

115020080 is a wasteful number, since it uses less digits than its factorization.

115020080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1014 (or 1008 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 17.

The square root of 115020080 is about 10724.7414887260. The cubic root of 115020080 is about 486.3227152066.

Adding to 115020080 its reverse (80020511), we get a palindrome (195040591).

The spelling of 115020080 in words is "one hundred fifteen million, twenty thousand, eighty".

Divisors: 1 2 4 5 7 8 10 14 16 20 28 35 40 56 70 80 112 140 280 293 560 586 701 1172 1402 1465 2051 2344 2804 2930 3505 4102 4688 4907 5608 5860 7010 8204 9814 10255 11216 11720 14020 16408 19628 20510 23440 24535 28040 32816 39256 41020 49070 56080 78512 82040 98140 164080 196280 205393 392560 410786 821572 1026965 1437751 1643144 2053930 2875502 3286288 4107860 5751004 7188755 8215720 11502008 14377510 16431440 23004016 28755020 57510040 115020080