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1012213807 = 11791164803
BaseRepresentation
bin111100010101010…
…010100000101111
32121112122210022021
4330111102200233
54033111320212
6244235131011
734040450443
oct7425224057
92545583267
101012213807
1147a406240
12242ba3a67
131319255a7
149860a823
155dce5307
hex3c55282f

1012213807 has 8 divisors (see below), whose sum is σ = 1118211840. Its totient is φ = 908545560.

The previous prime is 1012213799. The next prime is 1012213849. The reversal of 1012213807 is 7083122101.

It is a happy number.

1012213807 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 1012213807 - 23 = 1012213799 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012213897) 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, 581533 + ... + 583270.

It is an arithmetic number, because the mean of its divisors is an integer number (139776480).

Almost surely, 21012213807 is an apocalyptic number.

1012213807 is a deficient number, since it is larger than the sum of its proper divisors (105998033).

1012213807 is a wasteful number, since it uses less digits than its factorization.

1012213807 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1164893.

The product of its (nonzero) digits is 672, while the sum is 25.

The square root of 1012213807 is about 31815.3077464292. The cubic root of 1012213807 is about 1004.0548053314.

Adding to 1012213807 its reverse (7083122101), we get a palindrome (8095335908).

The spelling of 1012213807 in words is "one billion, twelve million, two hundred thirteen thousand, eight hundred seven".

Divisors: 1 11 79 869 1164803 12812833 92019437 1012213807