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1015021242 = 232187130139
BaseRepresentation
bin111100011111111…
…111111010111010
32121201221102101100
4330133333322322
54034321134432
6244415232230
734103352414
oct7437777272
92551842340
101015021242
11480a53534
12243b18676
131323993b1
1498b3b9b4
155e19c07c
hex3c7ffeba

1015021242 has 24 divisors (see below), whose sum is σ = 2200461120. Its totient is φ = 338148360.

The previous prime is 1015021213. The next prime is 1015021253. The reversal of 1015021242 is 2421205101.

It is a super-2 number, since 2×10150212422 = 2060536243422445128, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18609 + ... + 48747.

It is an arithmetic number, because the mean of its divisors is an integer number (91685880).

Almost surely, 21015021242 is an apocalyptic number.

1015021242 is an abundant number, since it is smaller than the sum of its proper divisors (1185439878).

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

1015021242 is a wasteful number, since it uses less digits than its factorization.

1015021242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32018 (or 32015 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 1015021242 is about 31859.3980169117. The cubic root of 1015021242 is about 1004.9822169572.

Adding to 1015021242 its reverse (2421205101), we get a palindrome (3436226343).

The spelling of 1015021242 in words is "one billion, fifteen million, twenty-one thousand, two hundred forty-two".

Divisors: 1 2 3 6 9 18 1871 3742 5613 11226 16839 30139 33678 60278 90417 180834 271251 542502 56390069 112780138 169170207 338340414 507510621 1015021242