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1397650495 = 51716442947
BaseRepresentation
bin101001101001110…
…0111010000111111
310121101221000001011
41103103213100333
510330244303440
6350404300051
746430555533
oct12323472077
93541830034
101397650495
11657a3455a
123300a1627
13193738237
14d389dbc3
1582a7d9ea
hex534e743f

1397650495 has 8 divisors (see below), whose sum is σ = 1775838384. Its totient is φ = 1052348544.

The previous prime is 1397650489. The next prime is 1397650523. The reversal of 1397650495 is 5940567931.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1397650495 - 227 = 1263432767 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8221389 + ... + 8221558.

It is an arithmetic number, because the mean of its divisors is an integer number (221979798).

Almost surely, 21397650495 is an apocalyptic number.

1397650495 is a deficient number, since it is larger than the sum of its proper divisors (378187889).

1397650495 is a wasteful number, since it uses less digits than its factorization.

1397650495 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16442969.

The product of its (nonzero) digits is 1020600, while the sum is 49.

The square root of 1397650495 is about 37385.1641028898. The cubic root of 1397650495 is about 1118.0627904246.

The spelling of 1397650495 in words is "one billion, three hundred ninety-seven million, six hundred fifty thousand, four hundred ninety-five".

Divisors: 1 5 17 85 16442947 82214735 279530099 1397650495