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1220124104 = 23152515513
BaseRepresentation
bin100100010111001…
…1001110111001000
310011000212201121122
41020232121313020
54444322432404
6321023254412
742143612063
oct11056316710
93130781548
101220124104
11576801331
122a074a408
13165a1c234
14b808b8da
15721b33be
hex48b99dc8

1220124104 has 8 divisors (see below), whose sum is σ = 2287732710. Its totient is φ = 610062048.

The previous prime is 1220124053. The next prime is 1220124107. The reversal of 1220124104 is 4014210221.

It can be written as a sum of positive squares in only one way, i.e., 1144468900 + 75655204 = 33830^2 + 8698^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (1220124107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76257749 + ... + 76257764.

Almost surely, 21220124104 is an apocalyptic number.

It is an amenable number.

1220124104 is a deficient number, since it is larger than the sum of its proper divisors (1067608606).

1220124104 is a wasteful number, since it uses less digits than its factorization.

1220124104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152515519 (or 152515515 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 1220124104 is about 34930.2748915608. The cubic root of 1220124104 is about 1068.5659608367.

Adding to 1220124104 its reverse (4014210221), we get a palindrome (5234334325).

The spelling of 1220124104 in words is "one billion, two hundred twenty million, one hundred twenty-four thousand, one hundred four".

Divisors: 1 2 4 8 152515513 305031026 610062052 1220124104