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1307919413 = 8591522607
BaseRepresentation
bin100110111110101…
…0100010000110101
310101011002012010202
41031331110100311
510134311410123
6333441130245
744261063063
oct11575242065
93334065122
101307919413
11611317239
12306029985
1317ac7b818
14c59c3033
1579c56a28
hex4df54435

1307919413 has 4 divisors (see below), whose sum is σ = 1309442880. Its totient is φ = 1306395948.

The previous prime is 1307919407. The next prime is 1307919427. The reversal of 1307919413 is 3149197031.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3149197031 = 31101587001.

It is a cyclic number.

It is not a de Polignac number, because 1307919413 - 212 = 1307915317 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1307919313) 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, 760445 + ... + 762162.

It is an arithmetic number, because the mean of its divisors is an integer number (327360720).

Almost surely, 21307919413 is an apocalyptic number.

It is an amenable number.

1307919413 is a deficient number, since it is larger than the sum of its proper divisors (1523467).

1307919413 is an equidigital number, since it uses as much as digits as its factorization.

1307919413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1523466.

The product of its (nonzero) digits is 20412, while the sum is 38.

The square root of 1307919413 is about 36165.1685050685. The cubic root of 1307919413 is about 1093.6046007841.

The spelling of 1307919413 in words is "one billion, three hundred seven million, nine hundred nineteen thousand, four hundred thirteen".

Divisors: 1 859 1522607 1307919413