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31404241 = 1114471973
BaseRepresentation
bin111011111001…
…1000011010001
32012002111112001
41313303003101
531014413431
63041034001
7530634361
oct167630321
965074461
1031404241
11167aa520
12a625901
1366771bb
1442569a1
152b54e61
hex1df30d1

31404241 has 8 divisors (see below), whose sum is σ = 34300224. Its totient is φ = 28515120.

The previous prime is 31404211. The next prime is 31404251. The reversal of 31404241 is 14240413.

Adding to 31404241 its reverse (14240413), we get a palindrome (45644654).

It can be divided in two parts, 3140 and 4241, that added together give a triangular number (7381 = T121).

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 31404241 - 213 = 31396049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31404211) 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, 14931 + ... + 16903.

It is an arithmetic number, because the mean of its divisors is an integer number (4287528).

Almost surely, 231404241 is an apocalyptic number.

It is an amenable number.

31404241 is a deficient number, since it is larger than the sum of its proper divisors (2895983).

31404241 is a wasteful number, since it uses less digits than its factorization.

31404241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3431.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 31404241 is about 5603.9486971242. The cubic root of 31404241 is about 315.4976295006.

The spelling of 31404241 in words is "thirty-one million, four hundred four thousand, two hundred forty-one".

Divisors: 1 11 1447 1973 15917 21703 2854931 31404241