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31040423035 = 529593628337
BaseRepresentation
bin11100111010001001…
…110100010001111011
32222010021000212110121
4130322021310101323
51002032322014120
622132035554111
72146132146106
oct347211642173
988107025417
1031040423035
1112189567286
12602345b937
132c08ab652b
1417066b973d
15c1a1425aa
hex73a27447b

31040423035 has 16 divisors (see below), whose sum is σ = 39186050400. Its totient is φ = 23569670656.

The previous prime is 31040423023. The next prime is 31040423087. The reversal of 31040423035 is 53032404013.

It is not a de Polignac number, because 31040423035 - 227 = 30906205307 is a prime.

It is a super-2 number, since 2×310404230352 (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1805614 + ... + 1822723.

It is an arithmetic number, because the mean of its divisors is an integer number (2449128150).

Almost surely, 231040423035 is an apocalyptic number.

31040423035 is a deficient number, since it is larger than the sum of its proper divisors (8145627365).

31040423035 is a wasteful number, since it uses less digits than its factorization.

31040423035 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3628430.

The product of its (nonzero) digits is 4320, while the sum is 25.

Adding to 31040423035 its reverse (53032404013), we get a palindrome (84072827048).

The spelling of 31040423035 in words is "thirty-one billion, forty million, four hundred twenty-three thousand, thirty-five".

Divisors: 1 5 29 59 145 295 1711 8555 3628337 18141685 105221773 214071883 526108865 1070359415 6208084607 31040423035