Search a number
-
+
31415330693 = 175347345607
BaseRepresentation
bin11101010000011111…
…111110011110000101
310000002101111011002102
4131100133332132011
51003314311040233
622233151321445
72161333622255
oct352037763605
9100071434072
1031415330693
1112361153a1a
126108b20285
132c68680896
1417403cb965
15c3ceeb1e8
hex7507fe785

31415330693 has 8 divisors (see below), whose sum is σ = 33269608512. Its totient is φ = 29561754816.

The previous prime is 31415330603. The next prime is 31415330729. The reversal of 31415330693 is 39603351413.

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 31415330693 - 210 = 31415329669 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 (31415330603) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81905 + ... + 263702.

It is an arithmetic number, because the mean of its divisors is an integer number (4158701064).

Almost surely, 231415330693 is an apocalyptic number.

It is an amenable number.

31415330693 is a deficient number, since it is larger than the sum of its proper divisors (1854277819).

31415330693 is a wasteful number, since it uses less digits than its factorization.

31415330693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 350971.

The product of its (nonzero) digits is 87480, while the sum is 38.

The spelling of 31415330693 in words is "thirty-one billion, four hundred fifteen million, three hundred thirty thousand, six hundred ninety-three".

Divisors: 1 17 5347 90899 345607 5875319 1847960629 31415330693