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31433043124 = 2272419382751
BaseRepresentation
bin11101010001100011…
…100010110010110100
310000010121211000222101
4131101203202302310
51003333324334444
622235023111444
72161640313100
oct352143426264
9100117730871
1031433043124
111237015159a
126112a42584
132c6c242a02
1417428bc900
15c3e8493d4
hex7518e2cb4

31433043124 has 36 divisors (see below), whose sum is σ = 64141580160. Its totient is φ = 13439118000.

The previous prime is 31433043101. The next prime is 31433043133. The reversal of 31433043124 is 42134033413.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 31433043092 and 31433043101.

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 11 ways as a sum of consecutive naturals, for example, 109252 + ... + 273499.

It is an arithmetic number, because the mean of its divisors is an integer number (1781710560).

Almost surely, 231433043124 is an apocalyptic number.

It is an amenable number.

31433043124 is an abundant number, since it is smaller than the sum of its proper divisors (32708537036).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31433043124 is a wasteful number, since it uses less digits than its factorization.

31433043124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 383188 (or 383179 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 28.

Adding to 31433043124 its reverse (42134033413), we get a palindrome (73567076537).

The spelling of 31433043124 in words is "thirty-one billion, four hundred thirty-three million, forty-three thousand, one hundred twenty-four".

Divisors: 1 2 4 7 14 28 49 98 196 419 838 1676 2933 5866 11732 20531 41062 82124 382751 765502 1531004 2679257 5358514 10717028 18754799 37509598 75019196 160372669 320745338 641490676 1122608683 2245217366 4490434732 7858260781 15716521562 31433043124