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1021244107 = 13643122173
BaseRepresentation
bin111100110111101…
…111001011001011
32122011122120112211
4330313233023023
54042414302412
6245200445551
734210301032
oct7467571313
92564576484
101021244107
114845138a4
122460198b7
13133767970
14998bb719
155e9caca7
hex3cdef2cb

1021244107 has 8 divisors (see below), whose sum is σ = 1101520784. Its totient is φ = 941213088.

The previous prime is 1021244099. The next prime is 1021244123. The reversal of 1021244107 is 7014421201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1021244107 - 23 = 1021244099 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1021244177) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52728 + ... + 69445.

It is an arithmetic number, because the mean of its divisors is an integer number (137690098).

Almost surely, 21021244107 is an apocalyptic number.

1021244107 is a deficient number, since it is larger than the sum of its proper divisors (80276677).

1021244107 is a wasteful number, since it uses less digits than its factorization.

1021244107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122829.

The product of its (nonzero) digits is 448, while the sum is 22.

The square root of 1021244107 is about 31956.9101604019. The cubic root of 1021244107 is about 1007.0318067942.

Adding to 1021244107 its reverse (7014421201), we get a palindrome (8035665308).

The spelling of 1021244107 in words is "one billion, twenty-one million, two hundred forty-four thousand, one hundred seven".

Divisors: 1 13 643 8359 122173 1588249 78557239 1021244107