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1220342030 = 25122034203
BaseRepresentation
bin100100010111100…
…1111000100001110
310011001021210112222
41020233033010032
54444401421110
6321032055342
742145510325
oct11057170416
93131253488
101220342030
11576940036
122a0834552
13165a9749b
14b81070bc
1572207c55
hex48bcf10e

1220342030 has 8 divisors (see below), whose sum is σ = 2196615672. Its totient is φ = 488136808.

The previous prime is 1220342009. The next prime is 1220342033. The reversal of 1220342030 is 302430221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220342033) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61017092 + ... + 61017111.

It is an arithmetic number, because the mean of its divisors is an integer number (274576959).

Almost surely, 21220342030 is an apocalyptic number.

1220342030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1220342030 is a deficient number, since it is larger than the sum of its proper divisors (976273642).

1220342030 is a wasteful number, since it uses less digits than its factorization.

1220342030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122034210.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 1220342030 is about 34933.3941952396. The cubic root of 1220342030 is about 1068.6295757979.

Adding to 1220342030 its reverse (302430221), we get a palindrome (1522772251).

The spelling of 1220342030 in words is "one billion, two hundred twenty million, three hundred forty-two thousand, thirty".

Divisors: 1 2 5 10 122034203 244068406 610171015 1220342030