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1222011042 = 23746762303
BaseRepresentation
bin100100011010110…
…0110100010100010
310011011102121000020
41020311212202202
510000313323132
6321131534310
742165631260
oct11065464242
93134377006
101222011042
1157787aa8a
122a12ba396
13166230075
14b841d430
157243752c
hex48d668a2

1222011042 has 32 divisors (see below), whose sum is σ = 2799194112. Its totient is φ = 348392784.

The previous prime is 1222011031. The next prime is 1222011047. The reversal of 1222011042 is 2401102221.

It is not an unprimeable number, because it can be changed into a prime (1222011047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11538 + ... + 50765.

It is an arithmetic number, because the mean of its divisors is an integer number (87474816).

Almost surely, 21222011042 is an apocalyptic number.

1222011042 is an abundant number, since it is smaller than the sum of its proper divisors (1577183070).

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

1222011042 is a wasteful number, since it uses less digits than its factorization.

1222011042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62782.

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 1222011042 is about 34957.2745219075. The cubic root of 1222011042 is about 1069.1165275596.

Adding to 1222011042 its reverse (2401102221), we get a palindrome (3623113263).

The spelling of 1222011042 in words is "one billion, two hundred twenty-two million, eleven thousand, forty-two".

Divisors: 1 2 3 6 7 14 21 42 467 934 1401 2802 3269 6538 9807 19614 62303 124606 186909 373818 436121 872242 1308363 2616726 29095501 58191002 87286503 174573006 203668507 407337014 611005521 1222011042