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115752530 = 2553218401
BaseRepresentation
bin1101110011000…
…11111001010010
322001210211121202
412321203321102
5214113040110
615252551202
72603610635
oct671437122
9261724552
10115752530
115a380653
1232922502
131ac9a82a
1411531c1c
15a2670a5
hex6e63e52

115752530 has 16 divisors (see below), whose sum is σ = 212286744. Its totient is φ = 45427200.

The previous prime is 115752509. The next prime is 115752551. The reversal of 115752530 is 35257511.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (115752509) and next prime (115752551).

It can be written as a sum of positive squares in 4 ways, for example, as 89548369 + 26204161 = 9463^2 + 5119^2 .

It is a junction number, because it is equal to n+sod(n) for n = 115752493 and 115752502.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 108671 + ... + 109730.

Almost surely, 2115752530 is an apocalyptic number.

115752530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

115752530 is a deficient number, since it is larger than the sum of its proper divisors (96534214).

115752530 is a wasteful number, since it uses less digits than its factorization.

115752530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218461.

The product of its (nonzero) digits is 5250, while the sum is 29.

The square root of 115752530 is about 10758.8349741038. The cubic root of 115752530 is about 487.3528357019.

The spelling of 115752530 in words is "one hundred fifteen million, seven hundred fifty-two thousand, five hundred thirty".

Divisors: 1 2 5 10 53 106 265 530 218401 436802 1092005 2184010 11575253 23150506 57876265 115752530