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1444430061 = 32236977923
BaseRepresentation
bin101011000011000…
…0100000011101101
310201122221122112200
41112012010003231
510424233230221
6355155052113
750536311234
oct12606040355
93648848480
101444430061
11681385758
123438a1039
131a0336859
14d9b99b1b
1586c1e426
hex561840ed

1444430061 has 12 divisors (see below), whose sum is σ = 2177112288. Its totient is φ = 921085704.

The previous prime is 1444430059. The next prime is 1444430063. The reversal of 1444430061 is 1600344441.

It is an interprime number because it is at equal distance from previous prime (1444430059) and next prime (1444430063).

It is not a de Polignac number, because 1444430061 - 21 = 1444430059 is a prime.

It is a super-2 number, since 2×14444300612 = 4172756402240927442, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1444430063) 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 11 ways as a sum of consecutive naturals, for example, 3488755 + ... + 3489168.

It is an arithmetic number, because the mean of its divisors is an integer number (181426024).

Almost surely, 21444430061 is an apocalyptic number.

It is an amenable number.

1444430061 is a deficient number, since it is larger than the sum of its proper divisors (732682227).

1444430061 is a wasteful number, since it uses less digits than its factorization.

1444430061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6977952 (or 6977949 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 1444430061 is about 38005.6582761041. The cubic root of 1444430061 is about 1130.4000622255.

The spelling of 1444430061 in words is "one billion, four hundred forty-four million, four hundred thirty thousand, sixty-one".

Divisors: 1 3 9 23 69 207 6977923 20933769 62801307 160492229 481476687 1444430061