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1390712614 = 2695356307
BaseRepresentation
bin101001011100100…
…1001011100100110
310120220212112001121
41102321021130212
510322010300424
6345555444154
746314601504
oct12271113446
93526775047
101390712614
11654025a75
123298b665a
13192179395
14d29b5674
158215cee4
hex52e49726

1390712614 has 4 divisors (see below), whose sum is σ = 2086068924. Its totient is φ = 695356306.

The previous prime is 1390712569. The next prime is 1390712621. The reversal of 1390712614 is 4162170931.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4162170931 = 5378531527.

It is a self number, because there is not a number n which added to its sum of digits gives 1390712614.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 347678152 + ... + 347678155.

It is an arithmetic number, because the mean of its divisors is an integer number (521517231).

Almost surely, 21390712614 is an apocalyptic number.

1390712614 is a deficient number, since it is larger than the sum of its proper divisors (695356310).

1390712614 is an equidigital number, since it uses as much as digits as its factorization.

1390712614 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 695356309.

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 1390712614 is about 37292.2594381193. The cubic root of 1390712614 is about 1116.2097145530.

The spelling of 1390712614 in words is "one billion, three hundred ninety million, seven hundred twelve thousand, six hundred fourteen".

Divisors: 1 2 695356307 1390712614