Search a number
-
+
31004301423 = 318157098161
BaseRepresentation
bin11100111000000000…
…000001100001101111
32222000202001200221010
4130320000001201233
51001444100121143
622124305440303
72145213133224
oct347000014157
988022050833
1031004301423
1112170135607
126013340093
132c0147a0b4
14170199594b
15c16da9a33
hex73800186f

31004301423 has 8 divisors (see below), whose sum is σ = 41567461936. Its totient is φ = 20555337600.

The previous prime is 31004301421. The next prime is 31004301443. The reversal of 31004301423 is 32410340013.

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

It is not a de Polignac number, because 31004301423 - 21 = 31004301421 is a prime.

It is a super-2 number, since 2×310043014232 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 31004301423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31004301421) 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, 28548538 + ... + 28549623.

It is an arithmetic number, because the mean of its divisors is an integer number (5195932742).

Almost surely, 231004301423 is an apocalyptic number.

31004301423 is a deficient number, since it is larger than the sum of its proper divisors (10563160513).

31004301423 is a wasteful number, since it uses less digits than its factorization.

31004301423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57098345.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 31004301423 its reverse (32410340013), we get a palindrome (63414641436).

The spelling of 31004301423 in words is "thirty-one billion, four million, three hundred one thousand, four hundred twenty-three".

Divisors: 1 3 181 543 57098161 171294483 10334767141 31004301423