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31030212434 = 2131193469709
BaseRepresentation
bin11100111001100010…
…110111011101010010
32222002112211010011012
4130321202313131102
51002022213244214
622131033050522
72145646311434
oct347142673522
988075733135
1031030212434
1112183822971
12601bb56a42
132c0694cb60
1417051bc654
15c192c703e
hex7398b7752

31030212434 has 8 divisors (see below), whose sum is σ = 50125727820. Its totient is φ = 14321636496.

The previous prime is 31030212431. The next prime is 31030212439. The reversal of 31030212434 is 43421203013.

It can be written as a sum of positive squares in 2 ways, for example, as 30294446809 + 735765625 = 174053^2 + 27125^2 .

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

It is not an unprimeable number, because it can be changed into a prime (31030212431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 596734829 + ... + 596734880.

Almost surely, 231030212434 is an apocalyptic number.

31030212434 is a deficient number, since it is larger than the sum of its proper divisors (19095515386).

31030212434 is a wasteful number, since it uses less digits than its factorization.

31030212434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1193469724.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 31030212434 its reverse (43421203013), we get a palindrome (74451415447).

The spelling of 31030212434 in words is "thirty-one billion, thirty million, two hundred twelve thousand, four hundred thirty-four".

Divisors: 1 2 13 26 1193469709 2386939418 15515106217 31030212434