Search a number
-
+
31430031746 = 285918294547
BaseRepresentation
bin11101010001011000…
…000011100110000010
310000010102011001010212
4131101120003212002
51003332042003441
622234434354122
72161602601421
oct352130034602
9100112131125
1031430031746
1112369485053
126111a2b942
132c6b72a129
1417423372b8
15c3e451eeb
hex751603982

31430031746 has 8 divisors (see below), whose sum is σ = 47199933840. Its totient is φ = 15696720468.

The previous prime is 31430031739. The next prime is 31430031791. The reversal of 31430031746 is 64713003413.

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

31430031746 is a modest number, since divided by 31746 gives 31430 as remainder.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9145556 + ... + 9148991.

It is an arithmetic number, because the mean of its divisors is an integer number (5899991730).

Almost surely, 231430031746 is an apocalyptic number.

31430031746 is a deficient number, since it is larger than the sum of its proper divisors (15769902094).

31430031746 is a wasteful number, since it uses less digits than its factorization.

31430031746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18295408.

The product of its (nonzero) digits is 18144, while the sum is 32.

The spelling of 31430031746 in words is "thirty-one billion, four hundred thirty million, thirty-one thousand, seven hundred forty-six".

Divisors: 1 2 859 1718 18294547 36589094 15715015873 31430031746