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115215152 = 2413553919
BaseRepresentation
bin1101101111000…
…00101100110000
322000210112110212
412313200230300
5213443341102
615233243252
72566212143
oct667405460
9260715425
10115215152
115a043938
1232703528
131ab40060
141143205a
15a1acc52
hex6de0b30

115215152 has 20 divisors (see below), whose sum is σ = 240401280. Its totient is φ = 53176128.

The previous prime is 115215131. The next prime is 115215181. The reversal of 115215152 is 251512511.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 276752 + ... + 277167.

It is an arithmetic number, because the mean of its divisors is an integer number (12020064).

Almost surely, 2115215152 is an apocalyptic number.

It is an amenable number.

115215152 is an abundant number, since it is smaller than the sum of its proper divisors (125186128).

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

115215152 is a wasteful number, since it uses less digits than its factorization.

115215152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 553940 (or 553934 counting only the distinct ones).

The product of its digits is 500, while the sum is 23.

The square root of 115215152 is about 10733.8321209156. The cubic root of 115215152 is about 486.5974914710.

Adding to 115215152 its reverse (251512511), we get a palindrome (366727663).

The spelling of 115215152 in words is "one hundred fifteen million, two hundred fifteen thousand, one hundred fifty-two".

Divisors: 1 2 4 8 13 16 26 52 104 208 553919 1107838 2215676 4431352 7200947 8862704 14401894 28803788 57607576 115215152