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1220144034 = 231012013439
BaseRepresentation
bin100100010111001…
…1110101110100010
310011000220201221210
41020232132232202
54444324102114
6321023530550
742144024144
oct11056365642
93130821853
101220144034
115768152aa
122a0759a56
13165a28325
14b8094c94
15721b9259
hex48b9eba2

1220144034 has 16 divisors (see below), whose sum is σ = 2464450560. Its totient is φ = 402687600.

The previous prime is 1220143949. The next prime is 1220144039. The reversal of 1220144034 is 4304410221.

It is a self number, because there is not a number n which added to its sum of digits gives 1220144034.

It is not an unprimeable number, because it can be changed into a prime (1220144039) 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, 1006114 + ... + 1007325.

It is an arithmetic number, because the mean of its divisors is an integer number (154028160).

Almost surely, 21220144034 is an apocalyptic number.

1220144034 is an abundant number, since it is smaller than the sum of its proper divisors (1244306526).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1220144034 is a wasteful number, since it uses less digits than its factorization.

1220144034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2013545.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 1220144034 is about 34930.5601730061. The cubic root of 1220144034 is about 1068.5717789344.

Adding to 1220144034 its reverse (4304410221), we get a palindrome (5524554255).

The spelling of 1220144034 in words is "one billion, two hundred twenty million, one hundred forty-four thousand, thirty-four".

Divisors: 1 2 3 6 101 202 303 606 2013439 4026878 6040317 12080634 203357339 406714678 610072017 1220144034