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1220024342 = 21916434967
BaseRepresentation
bin100100010111000…
…0001100000010110
310011000200122202202
41020232001200112
54444311234332
6321021204502
742143015165
oct11056014026
93130618682
101220024342
11576743389
122a0700732
131659b59c4
14b80633dc
1572193a62
hex48b81816

1220024342 has 16 divisors (see below), whose sum is σ = 1842849792. Its totient is φ = 605752680.

The previous prime is 1220024341. The next prime is 1220024381. The reversal of 1220024342 is 2434200221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220024341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 243143 + ... + 248109.

It is an arithmetic number, because the mean of its divisors is an integer number (115178112).

Almost surely, 21220024342 is an apocalyptic number.

1220024342 is a deficient number, since it is larger than the sum of its proper divisors (622825450).

1220024342 is a wasteful number, since it uses less digits than its factorization.

1220024342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5803.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 1220024342 is about 34928.8468461242. The cubic root of 1220024342 is about 1068.5368367002.

Adding to 1220024342 its reverse (2434200221), we get a palindrome (3654224563).

The spelling of 1220024342 in words is "one billion, two hundred twenty million, twenty-four thousand, three hundred forty-two".

Divisors: 1 2 191 382 643 1286 4967 9934 122813 245626 948697 1897394 3193781 6387562 610012171 1220024342