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1017200054 = 2131391491889
BaseRepresentation
bin111100101000010…
…011110110110110
32121220001010011002
4330220103312312
54040400400204
6244534043302
734131025553
oct7450236666
92556033132
101017200054
11482201502
122447a9532
13132980030
1499147a2a
155e47c91e
hex3ca13db6

1017200054 has 32 divisors (see below), whose sum is σ = 1666980000. Its totient is φ = 462726144.

The previous prime is 1017200039. The next prime is 1017200057. The reversal of 1017200054 is 4500027101.

It is a junction number, because it is equal to n+sod(n) for n = 1017199999 and 1017200035.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1017200057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 537542 + ... + 539430.

It is an arithmetic number, because the mean of its divisors is an integer number (52093125).

Almost surely, 21017200054 is an apocalyptic number.

1017200054 is a deficient number, since it is larger than the sum of its proper divisors (649779946).

1017200054 is a wasteful number, since it uses less digits than its factorization.

1017200054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2192.

The product of its (nonzero) digits is 280, while the sum is 20.

The square root of 1017200054 is about 31893.5738668466. The cubic root of 1017200054 is about 1005.7007905636.

Adding to 1017200054 its reverse (4500027101), we get a palindrome (5517227155).

The spelling of 1017200054 in words is "one billion, seventeen million, two hundred thousand, fifty-four".

Divisors: 1 2 13 26 139 149 278 298 1807 1889 1937 3614 3778 3874 20711 24557 41422 49114 262571 269243 281461 525142 538486 562922 3413423 3658993 6826846 7317986 39123079 78246158 508600027 1017200054