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115205152930 = 2572235112557
BaseRepresentation
bin110101101001011000…
…0110010000010100010
3102000100211211010211221
41223102300302002202
53341420004343210
6124531410125254
711215614433300
oct1532260620242
9360324733757
10115205152930
114494933a59a
121a3b1b8082a
13ab2c9c835a
14580c609270
152ee40751da
hex1ad2c320a2

115205152930 has 24 divisors (see below), whose sum is σ = 241225484508. Its totient is φ = 39498909408.

The previous prime is 115205152921. The next prime is 115205152999. The reversal of 115205152930 is 39251502511.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 113126613649 + 2078539281 = 336343^2 + 45591^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 117555789 + ... + 117556768.

Almost surely, 2115205152930 is an apocalyptic number.

115205152930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

115205152930 is an abundant number, since it is smaller than the sum of its proper divisors (126020331578).

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

115205152930 is a wasteful number, since it uses less digits than its factorization.

115205152930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235112578 (or 235112571 counting only the distinct ones).

The product of its (nonzero) digits is 13500, while the sum is 34.

The spelling of 115205152930 in words is "one hundred fifteen billion, two hundred five million, one hundred fifty-two thousand, nine hundred thirty".

Divisors: 1 2 5 7 10 14 35 49 70 98 245 490 235112557 470225114 1175562785 1645787899 2351125570 3291575798 8228939495 11520515293 16457878990 23041030586 57602576465 115205152930