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31413470 = 2511353809
BaseRepresentation
bin111011111010…
…1010011011110
32012002222011212
41313311103132
531020212340
63041144422
7531003314
oct167652336
965088155
1031413470
1116806450
12a62b112
13667b46a
14425a0b4
152b57a65
hex1df54de

31413470 has 32 divisors (see below), whose sum is σ = 61935840. Its totient is φ = 11376640.

The previous prime is 31413463. The next prime is 31413493. The reversal of 31413470 is 7431413.

It is a super-3 number, since 3×314134703 (a number of 23 digits) contains 333 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38426 + ... + 39234.

It is an arithmetic number, because the mean of its divisors is an integer number (1935495).

Almost surely, 231413470 is an apocalyptic number.

31413470 is a deficient number, since it is larger than the sum of its proper divisors (30522370).

31413470 is a wasteful number, since it uses less digits than its factorization.

31413470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1180.

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 31413470 is about 5604.7720738671. The cubic root of 31413470 is about 315.5285323590.

Adding to 31413470 its reverse (7431413), we get a palindrome (38844883).

The spelling of 31413470 in words is "thirty-one million, four hundred thirteen thousand, four hundred seventy".

Divisors: 1 2 5 10 11 22 55 110 353 706 809 1618 1765 3530 3883 4045 7766 8090 8899 17798 19415 38830 44495 88990 285577 571154 1427885 2855770 3141347 6282694 15706735 31413470