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1012228855 = 51118404161
BaseRepresentation
bin111100010101010…
…110001011110111
32121112200112221121
4330111112023313
54033112310410
6244235324411
734040542351
oct7425261367
92545615847
101012228855
1147a416580
12242bb0707
1313192c3b1
14986120d1
155dce99da
hex3c5562f7

1012228855 has 8 divisors (see below), whose sum is σ = 1325099664. Its totient is φ = 736166400.

The previous prime is 1012228843. The next prime is 1012228879. The reversal of 1012228855 is 5588222101.

It is a happy number.

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

It is not a de Polignac number, because 1012228855 - 27 = 1012228727 is a prime.

It is a super-2 number, since 2×10122288552 = 2049214509789222050, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1012228855.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9202026 + ... + 9202135.

It is an arithmetic number, because the mean of its divisors is an integer number (165637458).

Almost surely, 21012228855 is an apocalyptic number.

1012228855 is a deficient number, since it is larger than the sum of its proper divisors (312870809).

1012228855 is a wasteful number, since it uses less digits than its factorization.

1012228855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18404177.

The product of its (nonzero) digits is 12800, while the sum is 34.

The square root of 1012228855 is about 31815.5442354834. The cubic root of 1012228855 is about 1004.0597808751.

The spelling of 1012228855 in words is "one billion, twelve million, two hundred twenty-eight thousand, eight hundred fifty-five".

Divisors: 1 5 11 55 18404161 92020805 202445771 1012228855