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1397048701 = 19237104593
BaseRepresentation
bin101001101000101…
…0100010101111101
310121100210102112111
41103101110111331
510330121024301
6350343334021
746422501166
oct12321242575
93540712474
101397048701
11657663404
1232ba51311
13193587349
14d378476d
15829b0551
hex5345457d

1397048701 has 12 divisors (see below), whose sum is σ = 1514311932. Its totient is φ = 1287736704.

The previous prime is 1397048693. The next prime is 1397048707. The reversal of 1397048701 is 1078407931.

It can be written as a sum of positive squares in 2 ways, for example, as 987593476 + 409455225 = 31426^2 + 20235^2 .

It is not a de Polignac number, because 1397048701 - 23 = 1397048693 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1397048707) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 38940 + ... + 65653.

It is an arithmetic number, because the mean of its divisors is an integer number (126192661).

Almost surely, 21397048701 is an apocalyptic number.

It is an amenable number.

1397048701 is a deficient number, since it is larger than the sum of its proper divisors (117263231).

1397048701 is a wasteful number, since it uses less digits than its factorization.

1397048701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104668 (or 104649 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 40.

The square root of 1397048701 is about 37377.1146692732. The cubic root of 1397048701 is about 1117.9022972555.

The spelling of 1397048701 in words is "one billion, three hundred ninety-seven million, forty-eight thousand, seven hundred one".

Divisors: 1 19 37 361 703 13357 104593 1987267 3869941 37758073 73528879 1397048701