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1407744031 = 6123077771
BaseRepresentation
bin101001111101000…
…0111100000011111
310122002220210202211
41103322013200133
510340340302111
6351404501251
746612425001
oct12372074037
93562823684
101407744031
116626a8a21
1233354a827
13195860545
14d4d6a371
15838c4521
hex53e8781f

1407744031 has 4 divisors (see below), whose sum is σ = 1430821864. Its totient is φ = 1384666200.

The previous prime is 1407744011. The next prime is 1407744059. The reversal of 1407744031 is 1304477041.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1407744031 - 25 = 1407743999 is a prime.

It is a super-2 number, since 2×14077440312 = 3963486513632257922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1407743984 and 1407744002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1407744011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11538825 + ... + 11538946.

It is an arithmetic number, because the mean of its divisors is an integer number (357705466).

Almost surely, 21407744031 is an apocalyptic number.

1407744031 is a deficient number, since it is larger than the sum of its proper divisors (23077833).

1407744031 is an equidigital number, since it uses as much as digits as its factorization.

1407744031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23077832.

The product of its (nonzero) digits is 9408, while the sum is 31.

The square root of 1407744031 is about 37519.9151251705. The cubic root of 1407744031 is about 1120.7478081454.

The spelling of 1407744031 in words is "one billion, four hundred seven million, seven hundred forty-four thousand, thirty-one".

Divisors: 1 61 23077771 1407744031